Answer:
120 ft
Step-by-step explanation:
Let's assume that the length of the field is x feet. Then, according to the problem statement, the width of the field is (x - 20) feet.
The area of a rectangle is given by the formula A = length x width. So, we can write:
x(x - 20) = 12,000
Expanding the left-hand side, we get:
x^2 - 20x = 12,000
Bringing all the terms to one side, we have:
x^2 - 20x - 12,000 = 0
Now, we can solve this quadratic equation using the quadratic formula:
x = (-(-20) ± sqrt((-20)^2 - 4(1)(-12,000))) / (2(1))
x = (20 ± sqrt(20^2 + 48,000)) / 2
x = (20 ± 220) / 2
We discard the negative root, since a length cannot be negative, and we get:
x = 120
Therefore, the length of the field is 120 feet.
20. How many four-digit positive integers are divisible by both 12 and 20, but are not
divisible by 16?
(A) 111
(B) 113
(C) 125
(D) 150
(E) 149
The number of four-digit numbers that are divisible by both 12 and 20 but are not divisible by 16, obtained by finding the least common multiples of 12 and 20 are 150. the correct option is therefore option (D)
(D) 150
What is a least common multiple?The least common multiple (LCM) of two or more integers is the smallest positive integer that is a multiple of each of the integers.
The numbers 12, and 20 are divisible by 4, therefore, numbers that are divisible by 12 and 20 are also divisible by 4. Therefore, the number of four-digit numbers that are divisible by 4 are found as follows;
The number of 4 digit positive numbers between 1000 to 9999 are 9000 four-digit positive numbers.
The number of multiples of 4 between 1000 and 9999, includes the first number 1004 and the last number 9996
The number of four-digit positive integers that are divisible by 4 therefore is; (9996 - 1004)/4 + 1 = 2250
The least common multiple of 4, 12 and 20 is 60, therefore;
The number of four digit numbers that are divisible by 60 are can be found as follows;
The first number is 1020, the last number is 9960
Therefore, the number of 4 digit numbers that are divisible by 60 are;
(9960 - 1020)/60 + 1 = 150
The number of 4 digit numbers that are divisible by 12 and 20 but is not divisible by 16 is divisible by 4 and 15 that have a least common multiple of 60
The number of four-digit numbers that are divisible by 4 and 15 is also divisible by 60, therefore, the number of 4 digit numbers that are divisible by 4 and 15 are also 150
Therefore, the number of four-digit numbers that are divisible by 12 and 20 but are not divisible by 16 is 150.
The correct option is; (D) 150
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Question 10, please help
10/10
Optiοn C represents a prοpοrtiοnal relatiοnship . The values οf all the given values are prοpοrtiοnal tο each οther i.e, 1/3.
What is prοpοrtiοnal relatiοnship?A prοpοrtiοnal relatiοnship is a mathematical relatiοnship between twο variables where the ratiο οf the twο variables is cοnstant. In οther wοrds, if we have twο variables x and y, they are said tο have a prοpοrtiοnal relatiοnship if the ratiο οf x tο y is always the same, regardless οf the values οf x and y.
This can be expressed mathematically as:
x/y = k
where k is a cοnstant called the prοpοrtiοnality cοnstant. This means that as x increases, y will increase prοpοrtiοnally, and as x decreases, y will decrease prοpοrtiοnally.
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What is the area of the figure?
5 cm
6 cm
14 cm
9.4 Cm
Answer= [tex]50cm^{2}[/tex]
Juan ran 5 miles at the same pace and
walked for 10 minutes. Write an expression
that represents the total amount of time Juan
spent exercising.
The expression for time will be, Time = 5/r + 10/w.
What exactly are expressions?
In mathematics, an expression is a combination of numbers, symbols, and operators that represent a value or a computation.
Expressions can be simple or complex, and they can contain variables, constants, and functions. They can be evaluated to produce a single value, or they can be simplified or transformed using mathematical rules and operations.
Now,
Let's assume that Juan ran at a speed of "r" miles per minute, and let's also convert the 10 minutes of walking to miles per minute by dividing by the walking speed "w".
Then, the total time Juan spent exercising can be expressed as:
Time = Time Running + Time Walking
Time Running = Distance / Speed = 5 / r
Time Walking = 10 / w
Therefore,
the expression for the total amount of time Juan spent exercising is:
Time = 5/r + 10/w
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You deposit $2000 into a savings account advertising 7% annual interest rate compounded bi-annually. To nearest dollar, what is your end-of-year balance?
My end of the year balance is $2,142.45.
What is my end of the year balance?If the amount that is deposited is compounded bi-annually, it means that both the amount deposited and the interest earned, increases in value twice in a year. This is because bi-annually means twice in a year. An amount that is compounded grows at an exponential rate at each compounding date.
The formula for calculating future value:
FV = P (1 + r)^nm
Where:
FV = Future value P = Present value R = interest rate = 7%/2 = 3.5%m = number of compoundingN = number of years2000 x (1 + 0.035)^(2 x 1)
2000 x (1.035)^2 = $2,142.45
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Joe and chris each have a lawn mowing business. Joe charges 40 to mow 2 acres. Chris charges 30 to mow 1. 2 acres. Who charges more per acre? What is the answer
Joe charges more per acre than Chris. Joe charges $20 per acre and Chris charges $30 per acre.
Starting a lawn mowing business can be a profitable and rewarding venture if you have the right tools, skills, and strategies in place.Research your local area to determine the demand for lawn mowing services, the competition, and the going rate for services. This will help you determine whether starting a lawn mowing business is a viable option in your area.Create a business plan that outlines your goals, target market, services, pricing, and marketing strategies. This will help you stay organized and focused as you launch and grow your business.Check with your local government to find out what licenses and permits you need to start a lawn mowing business in your area.Therefore,from the given information Joe charges more per acre.
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Lesson 6: Symmetry in Equations
Cool Down: Even More Symmetry
Identify each as function even, odd, or neither. Explain or
show your reasoning.
1. the function k shown here:
A
-2
2. the function f defined by f(x) = 3* + 3-x
The function f(x) = 3x + 3 - x is neither even nor odd.
The y-axis of the function k's graph is symmetric. This is apparent because, if we reflect any point on the graph across the y-axis, we will obtain a second point on the graph. For purposes of formal definition, the function k is even since k(-x) = k(x) for every x within the range of k.
If the function f(x) = 3x + 3 - x fits the requirements for even or odd functions, we may determine whether it is even, odd, or neither.
Being symmetric around the y-axis means that an even function has f(-x) = f(x) for every x falling inside its domain.
An odd function is symmetric around the origin, which means that for any x falling within the domain of f, f(-x) = -f(x).
We evaluate f(-x) and f(x) to see if they are equivalent in order to determine whether f(x) is even:
f(x) = 3x + 3 - x = 2x + 3 while f(-x) = 3x + 3 - x = -2x + 3
The function f(x) is not even since f(-x) is not equal to f(x).
We assess f(-x) and -f(x) and see if they are equivalent to determine whether f(x) is odd:
F(x) = -3(x) + 3(x) - (x) = -2x + 3 F(x) = -(3x + 3(x) - x) = -2x - 3
The function f(x) is not weird since f(-x) does not equate to -f(x).
The function f(x) = 3x + 3 - x is therefore neither even nor odd.
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DUE TOMORROW! 30 POINTS
20. Consider a line passing through (2,5) with a slope of ¾ . Write its equation. What is its y-intercept?
21. Write the equation for a line parallel to the line from #20 passing through (5,1). Now write the equation for a line perpendicular to the same line, through the same point.
Answer:
20) y = 3/4x + 3 1/2
21) Parallel: y = 3/4 x - 2 3/4
Perpendicular: y = [tex]\frac{-4}{3 }[/tex] x + 7 [tex]\frac{2}{3}[/tex]
Step-by-step explanation:
20)
y = mx + b
y = __x + ___ We need to find the slope that the y-intercept. We are given the slope 3/4. We will you the x and y values from the point (2,5) to find the y intercept. Use 5 for y and 2 for x
y = mx + b
5 = 2(3/4) + b
5 = 3/2 + b Subtract 3/2 from both sides
5 - 3/2 = 3/2 -3/2 +b
[tex]\frac{10}{2}[/tex] - [tex]\frac{3}{2}[/tex] = b
[tex]\frac{7}{2}[/tex] or 3 [tex]\frac{1}{2}[/tex]
y = 3/4x + 3 1/2
21)
Parallel slopes are equal so the slope will be 3/4. Now we will use the x and y values from the point (5,1) to find the y-intercept. We will use 1for y and 5 for x
y = mx + b
1 = 5(3/4) +b
1 = 15/4 + b Subtract 15/4 from both sides.
[tex]\frac{4}{4}[/tex] - [tex]\frac{15}{4}[/tex] = [tex]\frac{15}{4}[/tex] - [tex]\frac{15}{4}[/tex] + b
[tex]\frac{-11}{4}[/tex] or - 2 [tex]\frac{3}{4}[/tex]
y = 3/4 x - 2 3/4
Perpendicular slopes or the opposite reciprocals. So the slope of the reciprocal equations would be [tex]\frac{-4}{3}[/tex]. We would still use the x and y values from the point (5,1)
1 = -4/3(5) + b
1 = [tex]\frac{-20}{3}[/tex] + b Add 20/3 to both sides
[tex]\frac{3}{3}[/tex] + [tex]\frac{20}{3}[/tex] = [tex]\frac{-20}{3}[/tex] + [tex]\frac{20}3}[/tex] + b
[tex]\frac{23}{3}[/tex] or 7 2/3
y = [tex]\frac{-4}{3 }[/tex] x + 7 [tex]\frac{2}{3}[/tex]
Helping in the name of Jesus.
#8Hi there,Can you help me? I am really confused and please can you show your work in order to understand and show your answer to compare my answers to yours if; I got it right Find the terminal point
P(x,y)
on the unit circle determined by the given value of
t
.
t=− 3
2π
P(x,y)=(− 2
1
, 2
3
)
The terminal point P(x,y)=(-23) can be located on the coordinate plane at the point (-23, -23).
The terminal point P(x,y)=(-23) can be visualized on a coordinate plane. To calculate the x- and y-coordinates of this point, we must first understand the definition of a terminal point. A terminal point is a point that marks the end of a line.
In this case, the terminal point P is the end of a line with coordinates (x, y) = (-23).
To calculate the x-coordinate of this point, we can simply look at the first number in the coordinate pair. In this case, the x-coordinate of P is -23.
To calculate the y-coordinate of this point, we must look at the second number in the coordinate pair. In this case, the y-coordinate of P is also -23.
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Use the Intermediate Value Theorem to show that P(x) = x^5 +
4x^3−10x−6
has a root on [0, 2].
P(x) is a continuous function on [0, 2]. We can conclude that the given function has a root on [0, 2].
The Intermediate Value Theorem is a mathematical theorem that states that a continuous function between two points takes on every value between the two points. The proof of this theorem is easy to understand and uses the definition of a continuous function. The theorem is used to establish the existence of roots or zeroes of functions.The statement is given by the Intermediate Value Theorem that “if f(x) is a continuous function on the interval [a,b], then for any value k that lies between f(a) and f(b) inclusive, there must be at least one value c on the interval [a,b] such that f(c)=k”.Use the Intermediate Value Theorem to show that P(x) = x5 + 4x3 − 10x − 6 has a root on [0, 2]Given, the function P(x) = x5 + 4x3 − 10x − 6Step 1: Verify if the function is continuous on [0, 2].The function P(x) is a polynomial function, and all the polynomial functions are continuous functions.
Therefore, P(x) is a continuous function on [0, 2].Step 2: Check the signs of the function at the endpoints f(0) and f(2).Let’s check f(0) and f(2)f(0) = P(0) = 0^5 + 4(0)^3 – 10(0) – 6= -6f(2) = P(2) = 2^5 + 4(2)^3 – 10(2) – 6= 50Step 3: Check if the value 0 lies between f(0) and f(2) inclusive.f(0) < 0 < f(2)Since 0 lies between f(0) and f(2), according to the Intermediate Value Theorem, there must be at least one value c on the interval [0,2] such that f(c)=0Hence, we can conclude that the given function has a root on [0, 2] Therefore, we can conclude that the given function has a root on [0, 2].
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In a video store, dvd that sells for $15 is marked 10% off. What is the amount of the discount
In a video store, a DVD that sells for $15 is marked 10% off. The amount of discount is $1.50.
If the DVD is marked 10% off, it means the price of the DVD has been reduced by 10% of its original price.
To calculate the amount of the discount, we need to find 10% of the original price. We can do this by multiplying the original price by 10% written as a decimal:
10% as a decimal = 0.10
Amount of discount = 0.10 x $15 = $1.50
Therefore, the amount of the discount on the DVD is $1.50.
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A recipe for vegetable fritata calls for 10 chard leaves for evry 6 eggs. Eggs are available either by the dozen for $3. 20 or by the half-dozen for $1. 70. Marissa wants to use 25 chard leaves to make a fritata. What is the minimum she should spend on eggs to use all of her chard leaves while keeping the recipe in the correct proportion
The minimum Marissa should spend on eggs to use all of her chard leaves while keeping the recipe in the correct proportion is $3.40.
To use 10 chard leaves, the recipe calls for 6 eggs. Let's find out how many eggs we need to use 25 chard leaves in the same proportion:
10 chard leaves / 6 eggs = 25 chard leaves / x eggs
where x is the number of eggs needed.
Cross-multiplying, we get:
10 chard leaves * x eggs = 6 eggs * 25 chard leaves
Simplifying, we get:
x = (6 eggs * 25 chard leaves) / 10 chard leaves
x = 15 eggs
So, Marissa needs 15 eggs to use 25 chard leaves in the recipe.
Now, let's find out the cheapest way to buy 15 eggs. She can buy either a dozen eggs for $3.20 or a half-dozen eggs for $1.70. Since a dozen contains 12 eggs and a half-dozen contains 6 eggs, she can either buy:
1 dozen + 3 individual eggs = 15 eggs for $3.20 + $0.24 = $3.44
2 half-dozens = 12 eggs for $3.40
Therefore, the minimum Marissa should spend on eggs to use all of her chard leaves while keeping the recipe in the correct proportion is $3.40.
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Give each Polynomial a name for its Highest Degree & Number of Terms.
[tex]x^{2} +2x-3[/tex]
[tex]-5x-1[/tex]
[tex]-2v^{3} +7[/tex]
[tex]3x^{4} +2v^{3}-8[/tex]
[tex]9w^{5}[/tex]
PLS need this quick.
Answer: 1
Step-by-step explanation:
i cant
Solve for side length x. Round to the nearest tenth.
Answer:
x = 3.1 Proofs attached to answer
Step-by-step explanation:
Proofs attached to answer
Answer:
3.1 rounded to the nearest tenth
Step-by-step explanation:
Using Sine Rule;
Sin A / a = Sin B / b = Sin C / c
Which is also as Sin M / m = Sin N / n = Sin P / p
Working with M and N;
Sin 15 / x = Sin 90 / 12
Sin 15 / x = 1 / 12 (cross multiply)
Making x the subject of the formula
x = 12 * Sin 15 = 3.10 = 3.1 rounded to the nearest tenth
the number of salmon observed in the sacramento river and the feather river in the last five years were counted and listed in the chart below: which of the following statements is true about the relation represented in the table? the relation is a function. the relation is not a function. there is not enough information to determine if it is a function or not.
The correct option is the relation is not a function.
A function is defined as a relation in which each input has exactly one output. A relation is any set of ordered pairs. According to the given chart:|Year|Sacramento River|Feather River| 2008|271,999|0| 2009|123,739|0| 2010|174,948|16,857| 2011|158,956|22,129| 2012|163,603|19,799| As we can see in the table, the Sacramento river has different number of salmon at a given year.
For example, in the year 2008, there are 271,999 salmon in the Sacramento river, in the year 2009, there are 123,739 salmon in the Sacramento river. The same with the Feather river. There is a year when there are zero salmon and there are years with different number of salmon.
Therefore, this relation is not a function. Hence, the correct option is the relation is not a function.
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which of the following is not consistent with assumptions for the independent-measures anova? a. the populations from which the samples are selected must have equal variances. b. the populations from which samples are selected must be normal, especially as sample sizes decrease. c. the observations within each sample must be independent. d. the populations from which samples are selected must be normal, especially as sample sizes increase.
The populations from which the samples are selected must not be equal variances, which is not consistent with assumptions for the independent-measures ANOVA.
Therefore, option A is the correct answer.
Independent-measures ANOVA Assumptions for the independent-measures ANOVA are listed below.
The one which is not consistent with the independent-measures ANOVA is described below:
The populations from which the samples are selected must have equal variances.
The populations from which samples are selected must be normal, especially as sample sizes decrease.
The observations within each sample must be independent.
The populations from which samples are selected must be normal, especially as sample sizes increase.
ANOVA is a statistical method that compares three or more groups' means to determine whether the differences are significant.
Independent Measures ANOVA (also known as One-Way ANOVA) compares the means of three or more unrelated groups to determine whether there are any significant differences.
When dealing with Independent Measures ANOVA, the following assumptions must be met:
Assumptions for the Independent-Measures ANOVA:
Independence: Observations in each group should be independent from one another.
Normally Distributed Populations:
Each group's scores should come from a normally distributed population.
Homogeneity of Variance: Each group's variance should be similar.
Mean Equality: Each group's means should be equal.
The above-mentioned assumptions are consistent with independent-measures ANOVA.
However, the populations from which the samples are selected must not be equal variances, which is not consistent with assumptions for the independent-measures ANOVA.
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Evaluate the function at the given values of the independent variable and simplify.
f(x)=6x^2-1/x^2
(a) f(5) (b) f(-5) (c) f(-x)
(Type an integer or a fraction. Simplify your answer.)
The functions are evaluated to give;
a. f(5) = 149/25
b. f(-5) = 149/25
c. f(-x) = 6x² - 1/x²
What are functions?Functions are defined as equation , laws or expressions showing the relationship between variables.
These variables are known as;
The independent variableThe dependent variableFrom the information given, we have that;
f(x)=6x^2-1/x^2
Now, to determine the functions, f(5), f(-5) and f(-x), we need to substitute the value inside the bracket as the value of x in each of the functions,
We have;
f(5) = 6(5)²- 1/(5)²
expand the bracket and subtract
f(5) = 149/25
For f(-5) = 6(-5)² - 1/(-5)²
f(-5) = 149/25
For f(-x) = 6(-x)² - 1/(-x)²
f(-x) = 6x² - 1/x²
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Hayden wrote the equation 470 divided by h=3,008, where h is the number of hours it took a plane flying at a constant speed of 470 miles per hour to travel 3,008 miles. Solve for h.
Therefore , the solution of the given problem of equation comes out to be it took the aircraft roughly 0.156 hours, or 9.36 minutes, to fly 3,008 miles at a constant speed of 470 miles per hour.
Define equation.Variable words are commonly used in complex algorithms to show consistency between two contradictory claims. Academic expressions called equations are used to show the equality of various academic numbers. In this case, normalization produces b + 7, in contrast to another algorithm, which can evaluate data from y + 7, divides 12 through two components, and produces y + 7.
Here,
The formula Hayden created is:
=> 470/h = 3008
We must separate h on one side of the equation in order to solve for it. By increasing both parts of the equation by h, we can achieve this:
=> 470 = 3008h
Then, to get h on its own, split the two sides of the equation by 3008:
=> h = 470/3008
By dividing the numerator and denominator by their 2 largest common factor, we can simplify this fraction:
=> h = 235/1504
Therefore, it took the aircraft roughly 0.156 hours, or 9.36 minutes, to fly 3,008 miles at a constant speed of 470 miles per hour.
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Can someone explain this without confusing me? Thank you
Answer: well f(x) equeals a funtction
your x is a given so all you have to do is plug in the given (X) to the equation given f(x)=x/2
Step-by-step explanation:
example for the first slot:
F(x)=-4
——
2
Answer:
Below
Step-by-step explanation:
Here is how to do the first one....the others are similar
f(x) = x/2 when x = -4, f(-4) = -4/2 = -2 (just put the number in for 'x')
when x = - 2 , f(-2) = -2/2 = -1
when x = 0 , 0 /2 = 0
when x = 1 , 1/2 = 1/2
when x = 6 , 6/ 2 = 3
So the answers across the bottom for the first one are
-2 -1 0 1/2 3
I think you can do the rest.....just put the number value in for 'x' in the equation....
For which values of x is the expression undefined?
x^2-36/x-9
​
The expression is undefined when x = 9. the expression will be undefined when x-9 = 0.
To find the values of x for which the expression is undefined, we need to look for values of x that would make the denominator of the expression equal to zero. In this case, the denominator is x-9. Therefore, the expression will be undefined when x-9 = 0. Solving for x, we get x = 9.
When x is equal to 9, the denominator becomes zero, which would make the expression undefined as dividing by zero is undefined in mathematics. For all other values of x, the expression is defined and can be evaluated.
We can verify this by substituting x = 9 in the expression and observing that it becomes (9² - 36)/(9-9), which is (81-36)/0, and division by zero is undefined.
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Complete Question:
For which values of x is the expression undefined?
[tex]x^2-36/x-9[/tex]
Which characteristic of big data is referred with the following statement: Data also comes in all types, forms and granularity, both structured and unstructured.
A. Veracity
B. Volume
C. Variety
D. Volume
C is Correct
C. Variety is the characteristic of big data that is referred to in the following statement: "Data also comes in all types, forms and granularity, both structured and unstructured."What is big data?Big data is a term used to describe vast, intricate data sets that cannot be processed or analyzed using conventional data processing tools. It is a term used to describe large amounts of structured, unstructured, and semi-structured data that cannot be processed using conventional processing methods. It is characterized by volume, speed, and complexity, and it necessitates new technologies, procedures, and strategies to manage, store, and analyze it.There are four essential characteristics of big data: volume, velocity, variety, and veracity, referred to as the four Vs. The different characteristics of big data are:Variety: Big data comes in all types, forms, and granularity, both structured and unstructured. It may include everything from text, images, and video to social media and IoT data. It can be a challenge to store, manage, and analyze data of such variety. Therefore, organizations must use tools and techniques that can handle all kinds of data.Velocity: The pace at which data is created and generated is referred to as velocity. In real-time, big data is collected and handled. The quicker you can process the data, the more valuable it becomes. Stream processing, complex event processing (CEP), and real-time analytics tools are examples of technologies that can handle high-velocity data.Volume: Big data is characterized by a large volume of data. Every day, we produce a tremendous amount of data that needs to be stored, processed, and analyzed. The huge data sets can make data analysis and management challenging.Veracity: The precision, relevance, and dependability of the data are referred to as veracity. Before processing and analyzing, big data must be checked for errors and inconsistencies. Quality checks and data cleansing procedures should be implemented to maintain data accuracy and reliability.
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Please help me thanks
From the given question, the value of the height of the cone is given by 57.3 centimeters to the nearest 1 decimal place: Option B
How to determine the volume of a cone?We should note that a cone is a three-dimensional geometric figure with a flat and curved surface pointed towards the top. It is formed by using a set of line segments or the lines which connects a common point, called the apex or vertex, to all the points of a circular base(which does not contain the apex)
The volume of the cone is given by the formula
Volume = 1/3πr²h
Where Volume = 1500 centimeters cube, radius = 5 cm, π = 22/7
1500 = 1/3*22/7*5*5*h
1500 = (22*5*5*h)/3*7
Simplifying the expression further we have
1500 = 550h/21
1500(21) = 550h
31500 = 550h
Making h the subject of the relation we have
h = 31500/550
h= 57.272727...
h= 57.3 to one decimal place
Therefore the height of the cone is 57.3 cm
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The owner of a bike shop would like to analyze the sales data to determine if the business is growing, declining, or remaining flat. The owner has the following data:
Sales Revenue Last Year =$125,000
Sales Revenue Current Year = $150, 000
What is the Sales Growth?
Do not forget to type the % symbol after multiplying your result by 100 to convert to percentage!
Hint: Your answer will NOT have a decimal point.
Example: 75%
Answer: To calculate the sales growth, we need to find the difference between the current year's revenue and the last year's revenue, divide it by the last year's revenue, and then multiply by 100 to convert it to a percentage.
Sales Growth = ((Sales Revenue Current Year - Sales Revenue Last Year) / Sales Revenue Last Year) x 100%
Sales Growth = (($150,000 - $125,000) / $125,000) x 100%
Sales Growth = ($25,000 / $125,000) x 100%
Sales Growth = 0.20 x 100%
Sales Growth = 20%
Therefore, the sales growth is 20%.
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Step-by-step explanation:
A psychologist studied the number of hours a worker sleeps at night and the number of errors made in a given task the following morning. Table 1 shows the results for the twenty people who were studied. It was also discovered that the average number of errors made by a normal person is 5.6.
Person 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Hours of sleep 4 8 6 10 5 6 7 7 9 3 10 8 12 3 9 5 4 3 12 7
Mistake done 7 2 8 6 9 6 9 8 1 9 8 3 6 4 2 6 8 5 2 3
Table 1
Based on Table 1 above:
Illustrate the two variables given (separately) by means of a bar chart. You are required to prepare TWO different graphs for the variables. The first graph your x-axis will be hours of sleep (horizontal line) and your y-axis will be frequency (vertical line). The second graph your x-axis will be mistakes done (horizontal line) and your y-axis will be frequency (vertical line). CANNOT COMBINE THE GRAPHS
It should be noted that the number of hours slept will have to be plotted on the x-axis.
Also, the number of mistakes that was made will be plotted on the y-axis.
Each point on the scatterplot will represent one participant in the study.
How to explain the scatterplotIt should be noted that to illustrate the two variables given in Table 1, we can create a scatterplot using R code.
In this case the number of hours slept will have to be plotted on the x-axis, and the number of mistakes made will be plotted on the y-axis.
Looking at the scatter plot, we can see that there is a general trend that more hours of sleep are associated with fewer mistakes made.
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Omar uses a sprinkler to water his yard. The sprinkler sprays water in a circle that has a radius of 15 feet. His yard is sharped like an irregular quadrilateral , and he often moves sprinkler so the entire yard gets watered. He places the sprinkler in such a way that the upper right corner of his yard gets watered, even though the side walk gets wet. How can you estimate the area of the sidewalk also gets wet
The estimated area of the sidewalk that is getting wet is 706.5 square feet
The area of the sidewalk that is getting wet can be estimated by using the formula for the area of a circle: A = πr2, where "r" is the radius of the circle, which in this case is 15 feet. (A = π(152) = 706.5).
Radius of a circle is the distance from the center of the circle to any point on it's circumference. It is usually denoted by 'R' or 'r'. This quantity has importance in almost all circle-related formulas. The area and circumference of a circle are also measured in terms of radius.
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Kayden is trying to find the height of a radio antenna on the roof of a local building.
He stands at a horizontal distance of 16 meters from the building. The angle of
elevation from his eyes to the roof (point A) is 41°, and the angle of elevation from
his eyes to the top of the antenna (point B) is 49°. If his eyes are 1.5 meters from the
ground, find the height of the antenna (the distance from point A to point B).
Round your answer to the nearest meter if necessary.
By answering the above question, we may state that As a result, the equation antenna's height is roughly 25 metres.
What is equation?A math equation is a mechanism for connecting two claims by using the equals sign (=) to indicate equivalence. A mathematical statement that establishes the equivalence of two mathematical expressions is known as an equation in algebra. The equal symbol, for example, splits the numbers 3x + 5 and 14. A mathematical formula can be used to describe the relationship between two phrases written on opposite sides of a letter. The logo and programme are frequently the same. 2x - 4 Equals 2, for example.
draw a diagram of the situation
B
|
| h
|
A------------C---------
| θ2| θ1
| |
| | 16 m
| |
D E
We need to calculate the height h of point B above point A. To begin, we may use the tangent function to get the heights of points C and E:
[tex]hC = 16 * tan(θ1)\\hE = 16 * tan(θ2)\\DE = hE - hC\\hB = hC + DE * tan(θ2)\\h = hB + 1.5\\θ1 = 41\\θ2 = 49\\DE = 16 * (tan(θ2) - tan(θ1)) ≈ 9.7587 m\\hC = 16 * tan(θ1) ≈ 12.2272 m\\hB = hC + DE * tan(θ2) ≈ 23.7333 m\\h ≈ hB + 1.5 ≈ 25.2333 m\\[/tex]
As a result, the antenna's height is roughly 25 metres.
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1. At a certain restaurant in Ohio, the number of minutes that diners spend at the table has a major impact on the profitability of the restaurant. Suppose the average number of minutes that diners spend at a table for dinner at the restaurant is 97 minutes with a standard deviation of 18 minutes. Assume the number of minutes diners spend at their table follows the normal probability distribution. Complete parts a through d.
a. Calculate the probability that the average number of minutes that diners spend at their table for dinner will be less than 100 minutes using a sample size of 9 tables.
(Round to three decimal places as needed.)
With a sample of 9 tables, the probability that diners would spend fewer than 100 minutes at their table during dinner is [tex]0.8413[/tex], or around [tex]84.13[/tex] percent.
What is the probability formula?The ratio of beneficial results to all beneficial results in the population is a common way to define probability.
How is Probability Applied in Real-World Situations?Probability has many uses in both analysis and gaming. Probability is used in sectors of real life and business where making predictions is important. The utilisation of probabilistic principles was necessary for forecasting market prices and cricket team performance.
With the values from the problem substituted, we obtain,
[tex]z = (100 - 97) / (18/\sqrt{9} ) = 1[/tex]
Using a standard normal distribution table or calculator, we find that the probability of getting a z-score less than [tex]1[/tex] is [tex]0.8413[/tex].
Therefore tables is [tex]0.8413[/tex] or approximately [tex]84.13[/tex]%.
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In the given figure, DE intersects the congruent sides of isosceles triangle AABC and is parallel to AB. What is the value of x? (a) 10 (b) 18 (d) 50 (e) 60 D(x+4) (54-2x)
The value of x in this isosceles triangle is equal to: D. 50.
What is an isosceles triangle?In Mathematics and Geometry, an isosceles triangle simply refers to a type of triangle with two (2) sides that are equal in length and two (2) equal angles.
This ultimately implies that, an isosceles triangle comprises two (2) side lengths that are equal and two (2) angles with the same magnitude.
In isosceles triangle ABC, side DE intersects its congruent sides and is parallel to side AB. Therefore, there are two sides that are congruent (equal) and as such we have;
(54 - 2x)° = (3x + 4)°
3x - 2x = 54 - 4
x = 50
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Find an equation of the line with gradient -3 and that passes through the
point (0,0)
Submit Answer
Answer:
y = -3x
Step-by-step explanation:
Using the 'y=mx+c' form,
Since m = -3,
y = -3x + c
Substituting (0,0) into the above equation:
0 = 0 + c
Hence,
y = -3x
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