Answers
The results of operations between functions:
Case A: (f + g) (x) = x / (x + 9) + x³
Case B: (f - g) (x) = x / (x + 9) - x³
Case C: (f · g) (x) = x⁴ / (x + 9)
Case D: (f / g) (x) = 1 / [x² · (x + 9)]
Function (f / g) (x) has the following domain: x ∈ R - {- 9, 0}.
How to find the result of operations between two functions
According to function theory, we can obtain a function with more complexity by operations between two functions, the most common operations are listed below:
Addition: (f + g) (x) = f (x) + g (x)Subtraction: (f - g) (x) = f (x) - g (x)Multiplication: (f · g) (x) = f(x) · g(x)Division: (f / g) (x) = f (x) / g (x)Now we proceed to determine the resulting function:
Case A:
(f + g) (x) = f(x) + g(x)
(f + g) (x) = x / (x + 9) + x³
Case B:
(f - g) (x) = f(x) - g(x)
(f - g) (x) = x / (x + 9) - x³
Case C:
(f · g) (x) = f (x) · g (x)
(f · g) (x) = [x / (x + 9)] · x³
(f · g) (x) = x⁴ / (x + 9)
Case D:
(f / g) (x) = f(x) / g(x)
(f / g) (x) = [x / (x + 9)] / x³
(f / g) (x) = 1 / [x² · (x + 9)]
The domain of (f / g) (x) is the set of all values of x-values such that the function exists. In this case, we must determine the values of the denominator of (f / g) (x) such that it is not equal to zero.
x² · (x + 9) = 0
x = 0 or x = - 9
The domain of (f / g) (x) is: x ∈ R - {- 9, 0}.
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Related Questions
The U.S. population in 2018 was estimated to be 327,200,000 within that population, there were 30,357,000 people who were 18-29 years old and 52,431,000 people who were 65 years and older
According to the graphic, 85% of the 30,357,000 people who were 18-29 years old tried vaping or electronic cigarettes Approximately how many people ages 18-29 said that they have tried vaping or e-cigarettes? Show your work
Answers
We can see here that the people of ages 18-29 that have tried vaping or e-cigarettes is: 25,803,450.
What is population?Population refers to the number of individuals of a particular species living in a particular area or region. In the context of human populations, it refers to the number of people living in a particular geographic area or country.
To find out the number of people ages 18-29 who said they have tried vaping or e-cigarettes, you can use the following calculation:
30,357,000 (the number of people ages 18-29) x 0.85 (the percentage of people who have tried vaping or e-cigarettes) = 25,803,450.
So, approximately 25,743,950 people ages 18-29 said that they have tried vaping or e-cigarettes.
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(50 points and brainlyest)
Because the diameter of the circle is now known 19.8, the base area of the cylinder can be calculated. Ignore the square base of the prism.
Answers
Answer:
307,8
Step-by-step explanation:
The area of a circle is 3.14 times the radius squared, and the radius is the diameter divided by 2. Hence the area is 307.8
Slope of the line y=29/8x - 2/3
Answers
Answer:
The slope of a line is represented by the coefficient of the x-term in the equation, which is also known as the "rise over run" or change in y over change in x.
In this equation y = 29/8x - 2/3
The coefficient of the x-term is 29/8, so the slope of the line is 29/8.
This is a 2-page document! **
Include a congruency statement for all congruent triangles.
State whether the triangles could be proven congruent, if possible, by SSS or SAS.
1. W
M
3.
5.
U
1.
2.
3.
4.
5.
1.
2.
3.
4.
Statements
8. Given: PO SR, ZPORZSRQ
Prove: APOR ASRO
2.
4.
Statements
6.
7. Given: AMCP, CM GP, C is the midpoint of AG
Prove: AACM ACGP
W
Complete the proofs below using the most appropriate method, SSS or SAS.
X
4
M
1.
2.
B
3.
5.
N
1.
2.
3.
SSS & SAS
4.
P
A
Reasons
P
G
R
Reasons
M
P
S
Gina Wilson (All Things Algebra. L
Answers
The following congruence theorems can be applied to every triangle in the provided pair:
1) SSS
2) SAS
3)SAS
4) SSS
5) SAS
6) SAS
How to find the Calculation?1) We can observe from the that;
FY ≅ CW
FP ≅ CM
YP ≅ MW
This proves the Side-Side-Side (SSS) congruency theorem, which states that the three corresponding sides of the two triangles are congruent.
2) We can observe from the picture that;
CBD and BCA are congruent because they both have alternate interior angles. Thus;
CBD and BCA
We can also see that
EB ≅ EC
DB ≅ CA
Inferring from the fact that two corresponding sides and an angle of the two triangles are congruent
Using the Side-Angle-Side (SAS) congruency theorem, construct BED and AEC.
3) The image demonstrates that;
SVU and SVT
The shared sides provide using the reflexive property;
SV ≅ SV
VT ≅ VU
Inferring from the fact that two corresponding sides and an angle of the two triangles are congruent
Side-Angle-Side (SAS) congruency theory is used by VSU and VST.
4) The picture shows what;
MN ≅ QP
MQ ≅ NP
The shared sides provide using the reflexive property;
NQ ≅ NQ
This implies that the three corresponding sides of the two triangles are congruent, which, according to the Side-Side-Side (SSS) congruency theorem, means that QNM QNP.
5) The image demonstrates that;
GL ≅ HL
GJ ≅ HK
JLG and HLK are incongruent angles in the vertical direction;
JLG and HLK
Inferring from the fact that two corresponding sides and an angle of the two triangles are congruent
employing the Side-Angle-Side (SAS) congruency theorem, QNM and QNP.
6) From the triangles provided, we note that;
XZY and XZW (They both form a straight angle of 90 degrees.)
The shared side is congruent to itself using reflexive property, therefore;
XZ ≅ XZ
Also;
ZW ≅ ZY
Inferring from the fact that two corresponding sides and an angle of the two triangles are congruent
Using the Side-Angle-Side (SAS) congruency theorem, XYZ = XWZ.
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Complete question:
segment from ( − 8 , 10 )to ( − 8 , − 5 )that partitions the segment into a ratio of 2 to 1?
Answers
The coordinate of the point that partitions the given line in the ratio 2:1 is; (-8, 0)
How to partition line segments?If the coordinates are given as;
P (x₁ , y₁) and Q (x₂ , y₂) and the partition of the line segment is divided internally in the ratio m : n, then its coordinate ( x, y) given by :
( x ,y ) = [(mx₂ + nx₁)/ ( m + n), (my₂ + ny₁)/ ( m + n)]
We are given the coordinates as ( − 8 , 10 )to ( − 8 , − 5 ) and if it is partitioned in the ratio 2: 1, the coordinates of the points of partition are;
(x, y) = [(2(-8) + 1(-8))/ (2 + 1), (2(-5) + 1(10))/ (2 + 1)]
(x, y) = (-24/3), (0/3)
(x, y) = (-8, 0)
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The roof shingles are arranged so that each row has 7 fewer shingles than the row below it. If the first row has 75 shingles, how many shingles are in the 6th row?
Answers
The shingles are in the 6th row is 110 using arithmetic process.
What is arithmetic process?A subject of mathematics known as arithmetic operations deals with the study and use of numbers in all other branches of mathematics. Basic operations including addition, subtraction, multiplication, and division are included.
The study of numbers and the operations on those numbers, which are relevant to all other branches of mathematics, is the focus of a branch of mathematics known as arithmetic operations. It includes addition, subtraction, multiplication, and division as its fundamental operations.
Given that A = 75 and d = 7, n = 6
A₆ = A + (n-1)d
A₆ = 75 + (6-1)7
A₆ = 75 + 5 * 7
A₆ = 75 + 35
A₆ = 110
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Answer:
33
Step-by-step explanation:
it starts with 75 and decreases by 7 for each row. on the 6th row youll be at 33!
STARTS AT 75
row one: 68
row two: 61
row three:54
row four: 47
row five: 40
row six: 33
sale of eggs that are contaminated with salmonella can cause food poisoning in consumers. a large egg producer takes an srs of 200 eggs from all the eggs shipped in one day. the laboratory reports that 9 of these eggs had salmonella contamination. unknown to the producer, 0.1% (one-tenth of 1%) of all eggs shipped had salmonella. identify the population, the parameter, the sample, and the statistic.
Answers
The simple random sample of 200 eggs
Statistic=Proportion of eggs in the sample that contain salmonella.
p = 0.045
The population is the individuals that are being studied.
population=All eggs in one day
A sample is the part of the population of which information was actually collected.
Sample=The simple random sample of 200 eggs
A parameter is a descriptive measure for a population.
Parameter=Proportion of eggs shipped that day that contain salmonella.
p = 0.1 % =0.001
A statistic is a descriptive measure for a sample.
STATISTIC=Proportion of eggs in the sample that contain salmonella.
p=9÷200 = 0.045
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if you were in a spaceship accelerating at 1g how long would it take you to reach the speed of light
Answers
To reach the speed of light, the spaceship will take 3.1 × 10⁷ seconds. The result is obtained by using the formula for acceleration.
What is acceleration?Acceleration is the rate of change in velocity of an object with respect to time. It can be expressed as
[tex]a = \frac{\Delta v}{\Delta t}[/tex]
Where
a = accelerationΔv = change in velocityΔt = change in timeIf we were in a spaceship with an acceleration of g, determine the time we reach the speed of light!
We have
Acceleration, a = 1g = 9.8 m/s²Speed of light, c = 3 × 10⁸ m/sTo find the time so that we can reach the speed of light, we use the formula for acceleration.
[tex]a = \frac{\Delta v}{\Delta t}[/tex]
[tex]g = \frac{c - 0}{\Delta t}[/tex]
[tex]9.8 = \frac{3 \times 10^{8}}{\Delta t}[/tex]
[tex]\Delta t = \frac{3 \times 10^{8}}{9.8}[/tex]
Δt = 0.306 × 10⁸
Δt = 3.1 × 10⁷ s
Hence, the spaceship will take 3.1 × 10⁷ seconds to reach the speed of light.
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Three vertices of a parallelogram are shown in the figure below.
Give the coordinates of the fourth vertex.
(-4,8)
(-6,-2)
(4,5)
Answers
The coordinates of the fourth vertex is (1,-8).
Find the coordinates of the fourth vertex?As three of a parallelogram's vertices, we were given:
(3,-2), (-1,-4), (5,-6). (5,-6).
We see that (3,-2) and (-1,-4) form a diagonal after charting the points as in the attachment.
The midpoint formula determines what point on this diagonal is in the middle.
Keep in mind that both diagonals' midpoints are identical.
Specify the coordinates of the fourth point (x,y).
As a result of once more applying the midpoint formula to (3, -2), we get:
x=1 and y=-8
The fourth point's locational details are as follows:
(1,-8).
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The complete question is,
A good can be produced for a total cost of 600 or 850 when making 100 units and 150 units, respectively. Discover an equation for TC in terms of Q, the number of generated units, presuming that the total cost function is linear.
What is the answer to this?
Answers
Step-by-step explanation:
what is missing is the definition that QS is the height and therefore standing at a right angle (90°) at PR.
then this can be solved.
we use Pythagoras
c² = a² + b²
c being the Hypotenuse (the side opposite of the 90° angle), a and b are the legs.
let's start with the triangle PQS.
21² = 15² + QS²
441 = 225 + QS²
QS² = 216
QS = sqrt(216) = sqrt(36×6) = 6×sqrt(6) = 14.69693846...
now for triangle QSR
(5x - 16)² = (3x - 4)² + QS²
25x² - 160x + 256 = 9x² - 24x + 16 + 216
16x² - 136x + 24 = 0
2x² - 17x + 3 = 0
the solution to a quadratic equation
ax² + bx + c = 0
is
x = (-b ± sqrt(b² - 4ac))/(2a)
in our case
x = (17 ± sqrt(17² - 4×2×3))/(2×2) =
= (17 ± sqrt(289 - 24))/4 = (17 ± sqrt(265))/4
x1 = (17 + 16.2788206...)/4 = 8.319705149...
x2 = (17 - 16.2788206...)/4 = 0.180294851...
but using x2 in side lengths 3x - 4 or 5x - 16 gives us negative side lengths. that does not make any sense for actual side lengths.
so, x1 is our solution :
x = 8.319705149...
shawna reads a scatterplot that displays the relationship between the number of cars owned per household and the average number of citizens who have health insurance in neighborhoods across the country. the plot shows a strong positive correlation. shawna recalls that correlation does not imply causation. in this example, shawna sees that increasing the number of cars per household would not cause members of her community to purchase health insurance. identify the lurking variable that is causing an increase in both the number of cars owned and the average number of citizens with health insurance.
Answers
The average income per household that is causing an increase in both the number of cars owned and the average number of citizens with health insurance.
The correlation of variables is the statistical relationship between two variables.
A correlation is positive if both variables move in the same direction and negative if the variables move in different directions - as one variable increases, the other decreases.
Correlation does not imply causation: This means that one can not legitimately associate a cause-and-effect relationship between the two variables.
In this example, it cannot be legitimately shown that increasing the number of cars per household would cause members of the community members to purchase health insurance, but when we bring in the lurking variable.
which is the increase in average income per household, we can see that this possibility might cause more people to buy more health insurance even after they have purchased cars, because they have more money to spend.
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Write an expression for "5 decreased by 2.
Answers
Answer:
5 (less than sign) 2
Step-by-step explanation:
Answer:
5n-20
Step-by-step explanation:
Product means multiply and so the product of 5 and n is 5n. To decrease this value by 20 , means to subtract 20 from it hence: 5n - 20 is algebraic expression for the statement
The function f(x) is shown on the graph.
The graph shows a downward opening parabola with a vertex at 3 comma 25, a point at negative 2 comma 0, a point at 8 comma 0, a point at 0 comma 16, and a point at 6 comma 16.What is the standard form of the equation of f(x)?
a) f(x) = x2 − 6x + 16
b) f(x) = x2 + 6x + 16
c) f(x) = −x2 − 6x + 16
d) f(x) = −x2 + 6x + 16
Answers
The correct answer is d. The standard form of the equation of f(x) is −x2 + 6x + 16.
What is downward opening parabola?A downward opening parabola is a curve in the shape of a parabola that opens downward and is symmetrical about the x-axis. The equation of a downward opening parabola is y = ax^2 + bx + c, where a is a negative number, and b and c are constants.
The focus of a downward opening parabola is the point on the parabola where the curvature is greatest and is located at the vertex of the parabola.
The directrix of a downward opening parabola is a line parallel to the x-axis and the distance from the focus to the directrix is equal to the length of the latus rectum of the parabola. The equation of the directrix is y = -a(x - h)^2 + k, where h and k are constants.
Downward opening parabolas can be used to graphically represent any type of data that follows a parabolic shape. This includes physical phenomena such as the path of a projectile or the vibration of a string.
Downward opening parabolas can also be used to model economic or financial data, such as the demand for a product or the price of a commodity. They may also be used to describe relationships between two variables in a mathematical equation.
The standard form of a parabola equation is f(x) = ax2 + bx + c, where a, b, and c are real numbers. In this case, the vertex of the parabola is at (3, 25), so the equation is in the form f(x) = a(x - 3)2 + 25. Putting in the other points on the graph to solve for a, b, and c yields the equation f(x) = -x2 + 6x + 16.
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Write an exponential function for a graph that passes through the points (2, 336) and (3, 2688). Write the function in the form y = a(b). please I need help
Answers
Answer:
y = 5.25 [tex](8)^{x}[/tex]
Step-by-step explanation:
the general form of an exponential function is
y = a [tex](b)^{x}[/tex]
to find a and b , substitute the coordinates of the given points into the equation.
using (2, 336 )
336 = a b² → (1)
using (3, 2688 )
2688 = a b³ → (2)
divide (2) by (1)
[tex]\frac{ab^3}{ab^2}[/tex] = [tex]\frac{2688}{336}[/tex] ( cancel ab on numerator/denominator of left side )
b = 8
substitute b = 8 into (1) and solve for a
336 = a × 8² = 64a ( divide both sides by 64 )
5.25 = a
then exponential function is
y = 5.25 [tex](8)^{x}[/tex]
the relationship between the magnitude of the restoring force f and the resultant displacement x from equilibrium for a nonlinear spring is given by the equation f
Answers
The work done by stretching the spring to the given distance is:
[tex]W=\frac{kx_{0} }{3}[/tex]
The given parameters:
Applied force on the spring = F
Extension of the spring, = x₀
The work done by stretching the spring to the given distance is calculated as follows:
[tex]W=\int\limits^b_a {F} \, dx[/tex]
Where:
F - Force.
W- Work.
x- Distance.
If we know that F=k.x², then the work of the nonlinear spring is:
[tex]W=\int\limits^b_a {F} \, dx \\W=\int\limits^b_a {kx^2} \, dx \\W=k\int\limits^b_a {x^2} \, dx \\\\W=k[\frac{x^3}{3}]\\\\W=k[\frac{x_b-x_a}{3} ]\\\\W=k[\frac{x_o-0}{3} ][/tex]
W=kx₀/3
Thus, the work done by stretching the spring to the given distance is: W=kx₀/3
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What is the equation of the line that passes through the point (3, -7) and has a slope of
−4/3?
Answers
[tex](\stackrel{x_1}{3}~,~\stackrel{y_1}{-7})\hspace{10em} \stackrel{slope}{m} ~=~ - \cfrac{4}{3} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-7)}=\stackrel{m}{- \cfrac{4}{3}}(x-\stackrel{x_1}{3}) \implies y +7= -\cfrac{4}{3} (x -3) \\\\\\ y+7=-\cfrac{4}{3}x+4\implies {\Large \begin{array}{llll} y=-\cfrac{4}{3}x-3 \end{array}}[/tex]
PLEASE HELP ITS DUE TODAY WOULD GIVE ALOT OF POINTS IF SOMEONE SHOWS THE ANSWER ANY SPAM ANSWERS WILL BE REPORTED!
THANK YOU!
Answers
Answer:
y ≥ -x -7
Step-by-step explanation:
The inequality is greater than or equal to because it is above the line and it is a solid line.
The slope is -1. If you select a point on the line, you go down one unit and one unit to the right to get back on the line. The slope is the rise over the run. -1/1 = -1
The y intercept is where the graph crosses the y axis (0,-7) So the y intercept is -7
Find the smallest value of m such that the product of 189m is a perfect square
Answers
Answer: 7
Step-by-step explanation:
First, we need to prime factorize the number 189,
189 = 3 × 3 × 3 × 7 × m
From the factors we can see that there is no pair of same numbers for 7, so if we replace m with 7, we can get a perfect square.
Hence the answer is 7
please help will mark BRAINLIEST thank you
Answers
Answer: <3, 1>
Step-by-step explanation: A translation of a vector is simply moving it a certain distance in a certain direction. In this case, the first translation of <6, -4> moves the vector 6 units to the right and 4 units down. The second translation of <-3, -5> then moves the vector an additional 3 units left and 5 units down. The net result of these two translations is to move the vector 3 units to the right and 1 unit up, which is equivalent to a single translation of <3, 1>.
Mario wants to mail three books with the following
weights:5/8 pound,7/16 pound, and 3/4
pound. Can Mario
mail the books in a box that can hold up to 2 1/2 pounds?
Use benchmarks to justify your answer.
Answers
Mario can mail the books in the box, as the weight of the books is less than the weight of the box.
How to obtain the total weight?The total weight is obtained applying proportions, converting the fractions to decimal, dividing the numerator by the denominator.
The weights of each book are given as follows:
5/8 pounds = 0.625 pounds.7/16 pounds = 0.4375 pounds.3/4 pounds = 0.75 pounds.Hence the total weight for the books is given as follows:
0.625 + 0.4375 + 0.75 = 1.8125 pounds.
The weight of the box is given as follows:
2 + 0.5 = 2.5 pounds.
Hence Mario can mail the books in the box, as the weight of the books is less than the weight of the box.
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A 2D depiction of what a 3D shape would look like if it was opened out and laid flat is called a
Answers
Answer: Net (of a shape)
Step-by-step explanation:
Answer:
Step-by-step explanation:
no need for step by step its called a net
A company mix concrete brick shaped like rectangular prism is birth is 10 inches long 9 inches wide and 4 inches tall if they used 18,000 in 3 (the tree is to the power of / tiny three) of concrete how many breaks do they make?
Answers
50 breaks do they make.
What is equation?An equation is a mathematical statement that shows the relationship between two values, or variables. It is formed by using an equal sign between two expressions that have the same value. Equations are used to solve for unknown values, or to describe a relationship between two or more variables. Equations can be used to solve for a single variable or multiple variables, and can be used to solve problems in both mathematics and science.
To find the answer to this question we must use the formula V = L x W x H. In this case, V = 10 x 9 x 4 = 360. We now know that there is 360 cubic inches in each brick. To find the total number of bricks that can be made from 18,000 cubic inches of concrete, we must divide 18,000 by 360. The answer is 50, which means that the company can make 50 concrete bricks from 18,000 cubic inches of concrete.
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Please help with their question
Answers
If f(x) = x⁴ + 2, g(x) = x-6 and h(x) = √x , then the simplified form of f(g(h(x))) is f(g(h(x))) = (√x - 6)⁴ + 2.
What is the polynomial expression?
Any expression which consists of variables, constants, and exponents, and is combined using mathematical operators like addition, subtraction, multiplication, and division is a polynomial expression.
We can simplify f(g(h(x))) by first evaluating h(x), then substituting the result into g(x), and finally substituting the result into f(x).
Starting with h(x) = √x, we can substitute this into g(x) to get:
g(h(x)) = g(√x) = √x - 6
Next, we can substitute g(h(x)) = √x - 6 into f(x) to get:
f(g(h(x))) = f(√x - 6) = (√x - 6)⁴ + 2
Simplifying this expression requires some algebraic manipulation, but we can expand (√x - 6)⁴ using the binomial theorem or by using the method of FOIL (first, outer, inner, last) repeatedly. Either way, we will end up with a polynomial expression in x with terms of various degrees.
Therefore, the simplified form of f(g(h(x))) is f(g(h(x))) = (√x - 6)⁴ + 2.
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Which ordered pairs are solutions to the equation X+2y=8?
Answers
Answer:
To find the ordered pairs that are solutions to the equation X+2y=8, we need to isolate the variable y on one side of the equation.
We can start by subtracting X from both sides:
X+2y = 8
X+2y-X = 8-X
2y = 8-X
Now we can divide both sides by 2:
y = (8-X)/2
So the ordered pairs (X, y) that are solutions to the equation X+2y=8 are the ones that satisfy the equation y = (8-X)/2.
We can substitute any value of x into the equation and find the corresponding y value.
For example, if we take X= 4, we can find the corresponding y value:
y = (8-4)/2 = 4/2 = 2.
so (4,2) is a solution to the equation X+2y=8.
We can also plot the equation on a Cartesian plane and find the points where the equation is true, those are the solutions.
Alternatively, we can solve the equation for X and find the solutions for y.
X = 8-2y
So the ordered pairs (X, y) that are solutions to the equation X+2y=8 are the ones that satisfy the equation X = 8-2y
We can substitute any value of y into the equation and find the corresponding X value.
For example, if we take y= 2, we can find the corresponding X value:
X = 8-2(2) = 8-4 = 4.
so (4,2) is a solution to the equation X+2y=8.
In this case, any value of X and y that satisfies the equations y = (8-X)/2 or X = 8-2y are solutions to the equation X+2y=8
: AXYZ is located on the coordinate
plane below.
X
4
If the triangle is transformed following
the rule (x, y) → (x, -y), will congruence
be maintained? Why or why not?
If KL
show
Answers
When two pairs of corresponding angles and the included pair of sides are likewise congruent, a triangle is said to be congruent.
What is the congruent triangle?When two triangles can be superimposed, have identical side lengths, and equal angles, they are said to be congruent.
Triangles with the same angle measurements and side lengths are said to be congruent. SSS (Side-Side-Side) SAS are the triangle congruence criteria (Side-Angle-Side). When they have, triangles are congruent. There are precisely the same three sides and three angles.
Triangles are said to be congruent if two pairs of corresponding angles and the included pair of sides are also congruent. The triangles are congruent if a pair of sides that are not included and two pairs of comparable angles are congruent.
When the coordinates of XYZ are converted to produce its congruent image, X'Y'Z.
The triangle XYZ's translated picture is X'Y'Z'.
The triangle XYZ's reflected image becomes X'Y'Z'.
The triangle XYZ does not turn into its rotated counterpart, X'Y'Z'.
Therefore, Option I and II are true statements. so D is the correct answer.
The complete question is:
XYZ is transformed on a coordinate plane to obtain its congruent image X'Y'Z. Which of the following statements could be true?
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Question
This graph shows a proportional relationship.
What is the constant of proportionality?
Enter your answer in the box.
Graph titled Math Test Raw Scores. The vertical axis is labeled Points. The horizontal axis is labeled Correct answers. The horizontal axis ranges from 0 to 24 in increments of 2. The vertical axis ranges from 0 to 120 in increments of 10. A line passes through the origin and the points begin ordered pair 5 comma 30 end ordered pair and begin ordered pair 12 comma 72 end ordered pair and begin ordered pair 18 comma 108 end ordered pair and begin ordered pair 20 comma 120 end ordered pair.
Answers
The constant of proportionality is equal to 6.
What is a proportional relationship?In Mathematics, a proportional relationship is a type of relationship that generates equivalent ratios and it can be modeled or represented by the following mathematical expression:
y = kx
Where:
x represents the correct answers.y represents the points.k is the constant of proportionality.Next, we would determine the constant of proportionality (k) for the relationship between correct answers and points on this graph as follows:
Constant of proportionality, k = y/x
Constant of proportionality, k = 30/5 = 72/12 = 108/18 = 120/20
Constant of proportionality, k = 6
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Answer:
6
Step-by-step explanation:
120/20 = 6
108/18 = 6
72/12 = 6
30/5 = 6
See the pattern? :)
if we apply an alpha level of .05, and there really is no effect of the experimental manipulation, then one should make a type i error .
Answers
Answer:
6 votes
Step-by-step explanation:
suppose that 40% of all adults regularly consume coffee, 60% regularly consume carbonated soda, and 35% regularly consumes both coffee and soda. draw a venn diagram, then answer the following:(a) What is the chance a randomly selected adult regularly drinks coffee but doesn't drink soda?(b) What is the probability that a randomly selected adult consumes coffee, soda or both?(c) What is the probability that a randomly selected adult doesn't regularly consume at least one of these two products?
Answers
The probabilities of adults who drinks only coffee , both/ coffee ,soda and doesn't drink any are 5% , 65% and 35%.
Let A be the event that an adult consumes coffee.
Let B be the event that an adult consumes carbonated soda.
Given probabilities of the events.
P (A) = 0.4
P (B) = 0.6
P(A∩B) = 0.35
(a). P(A) - P(A∩B) = 0.4 - 0.35
= 0.05 OR 5 %
(b). P(AUB) = P (A) + P (B) - P(A∩B)
= 0.4 + 0.6 - 0.35
= 0.65 OR 65%
(c). The given case represents compliment of the event when the adult consumes at least one of the drink. According to probability axiom, the probability is given by:
P ((AUB)') = 1 - P (AUB) = 1-0.65 = 0.35
Therefore,
P ((AUB)') = 0.35 or 35 %.
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reduce to simplest form
-3/2 - 3/8
Answers
Answer:
To add or subtract fractions, they must have a common denominator. In this case, the denominators of the fractions are 2 and 8, which are not the same. To find the least common multiple of 2 and 8, we can list the multiples of each number and find the smallest one that is common to both:
2: 2, 4, 6, 8, 10, 12, 14, ...
8: 8, 16, 24, 32, ...
The least common multiple of 2 and 8 is 8. Therefore, to add or subtract the fractions, we must convert them to have a denominator of 8.
-3/2 = -12/8 and 3/8 = 3/8
So, -3/2 - 3/8 = -12/8 - 3/8
Now we can subtract the fractions directly:
-12/8 - 3/8 = -12 - 3 / 8
= -15/8
Therefore, the simplified form of -3/2 - 3/8 is -15/8
If 28% of 581 people replied newton ate the apple what’s the margin of error %
Answers
The margin of error, given the percentage who replied that Newton ate the apple, is 3.5%.
How to find margin of error ?The margin of error is a measure of how much the sample results are likely to vary from the true population value.
To calculate the margin of error, you need to know the sample size, the proportion of the sample that gave a particular response, and the level of confidence.
The formula for the margin of error is:
Margin of Error = z x √(p x ( 1 - p) / n)
where:
z = the critical value from the standard normal distribution table
p = the proportion of the sample that gave a particular response
n = the sample size
The margin of error for Newton eating the apple is therefore:
Margin of Error = 1.96 x √(0.28 x (1 - 0.28) / 581)
Margin of Error = 1.96 * √(0.00035)
Margin of Error = 1.96 * 0.018
Margin of Error = 0.035
The margin of error is therefore 3.5%.
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