I am so lost. Can someone help please?

The value of x that maximizes the area of the figure is 1.5 inches, and the maximum area is 3.375 square inches.

A rectangle is a two-dimensional form that has four full sides and four right angles. Because the opposing sides are parallel and congruent, it is a unique kind of parallelogram.

To find the maximum area of the figure, we need to determine the value of x that will maximize the area.

The area of the figure can be calculated as:

A = (1.5x)(x) + (1/2)(1.5x)(6-2x)

Simplifying the expression:

[tex]A = 1.5x^2 + 4.5x - 3x^2[/tex]

[tex]A = -1.5x^2 + 4.5x[/tex]

To find the value of x that maximizes the area, we need to take the derivative of A with respect to x and set it equal to zero:

dA/dx = -3x + 4.5 = 0

Solving for x:

3x = 4.5

x = 1.5 inches

Now that we know x=1.5 inches maximizes the area, we can substitute it back into the area equation to find the maximum area:

[tex]A = -1.5(1.5)^2 + 4.5(1.5)[/tex]

A = 3.375 square inches

Therefore, the value of x that maximizes the area of the figure is 1.5 inches and the maximum area is 3.375 square inches.

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Based on the information we can infer that the area of the image is: 50.24 in²

To find the area of the figure we must take into account that this figure is a circle. To find the area of this figure we must use the following mathematical formula:

A = πr²

Then we must replace the values and find the result, the formula would look like this:

A = π4²

A=3.14*4²

A=3.14*16

A = 50.24in

According to the above, the area of the circle would be 50.24 in. Additionally, we learned the formula for circle area.

Note: This question is incomplete; here is the missing information:

Find the area of the figure below.

r = 4 in

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2xy - 2 = 0

Step-by-step explanation:

d2y/dx2 = 2xy - 2(1) = 0

The length of the arc XY = 6.28yards

The area of shaded part = 12.57yards²

The arc length of a portion of a circle's circumference is the length of the curved line that makes up that portion of the circle. Formula:

Arc length = [tex]\frac{(angle subtended by the arc)}{360}[/tex] × (circumference of the circle)

Area of portion = [tex]\frac{(angle subtended by the arc)}{360}[/tex] × (area of circle)

Part 7: Given that, r = 4yards and Ф = 90°

So, The length of the arc XY = [tex]\frac{90^{o} }{360^{o} }[/tex] × 2π × 4yards = 2π = 6.28yards

The area of shaded part = [tex]\frac{90^{o} }{360^{o} }[/tex] × π × (4yards)² = 4π = 12.57yards²

Part 8: Given that, r = 19ft and Ф = 300°

So, The length of the arc ST = [tex]\frac{300^{o} }{360^{o} }[/tex] × 2π × 19ft = [tex]\frac{95}{3}[/tex]π = 99.48ft

The area of shaded part = [tex]\frac{300^{o} }{360^{o} }[/tex] × π × (19ft)² = [tex]\frac{1805}{6}[/tex]π = 945.09ft²

Part 9: Given that, r = 4inch and Ф = 315°

So, The length of the arc EF = [tex]\frac{315^{o} }{360^{o} }[/tex] × 2π × 4inch = 7π = 21.99inch≅22inch

The area of shaded part = [tex]\frac{315^{o} }{360^{o} }[/tex] × π × (4inch)² = 14π = 43.98inch²

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Answer:

Abdul paid $0.50 per pound of rice ($12 divided by 24 pounds).

Therefore , the solution of the given problem of function comes out to be [-3√x + 3√(x + h)] / h / √x√(x + h).

Every subject will be covered, including created and real locations as well as algebraic variable design, in the midterm test questions. a schematic illustrating the connections between various components that work together to produce the same outcome. A service is made up of many unique parts that work together to produce unique outcomes for each input.

Here,

A function's difference quotient, f(x), is provided by:

=> [f(x+ h) - f(x)] / h

where h denotes a slight modification to the x-value.

The difference quotient for the function f(x) = -3/x can be calculated as follows:

=> [f(x + h) - f(x)] / h

=> [-3/√(x + h) + 3/√x] / h (substituting x + h for x in the function)

=>  [-3√x + 3√(x + h)] / [h√x√(x + h)] (finding a common denominator and combining the terms)

=> [-3√x + 3√(x + h)] / h / √x√(x + h) (dividing by the denominator)

Therefore, the difference quotient of f(x) is:

=> [-3√x + 3√(x + h)] / h / √x√(x + h)

The difference fraction of f(x) is thus:

=> [-3√x + 3√(x + h)] / h / √x√(x + h)

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Step-by-step explanation:

For a 151kg parcel, we can see that it falls under the category of "Over 100kg and up to 500kg", so the cost would be 21.10 Naira per kg:

Cost of sending 151kg parcel = 21.10 Naira/kg * 151 kg = 3187.10 Naira

For a 507kg parcel, we can see that it falls under the category of "Over 100kg and up to 500kg", so the cost would be 21.10 Naira per kg:

Cost of sending 507kg parcel = 21.10 Naira/kg * 507 kg = 10701.70 Naira

To find the cost of buying stamps, we need to check which category the number of stamps falls under. For 150 stamps, it falls under the category of "Over 10 stamps up to 50 stamps", so the cost would be 75.00 Naira:

Cost of buying 150 stamps = 75.00 Naira

For 213 stamps, it falls under the category of "Over 50 stamps up to 100 stamps", so the cost would be 105.00 Naira:

Cost of buying 213 stamps = 105.00 Naira

The value of the inverse function of f(x), that is, f⁻¹(33) is 2.

A function takes in values, applies specific operations to them, and produces an output. The inverse function acts, agrees with the outcome, and returns to the initial function. In general, switching the coordinates x and y is how an inverse is calculated. Although not strictly a function, this freshly constructed inverse is a relation.

To guarantee that the original function's inverse will likewise be a function, the original function must be a one-to-one function. Only when every second element matches the first value is a function deemed to be a one-to-one function.

Given that,

f(x)=4x³+1

Also, f⁻¹(33).

Thus, using the input and output corresponding values we have:

f(x) = 4x³ + 1 = 33

x³ = 8

Taking the cube root of both sides, we get:

x = 2

Hence, the value of the inverse function of f(x), that is, f⁻¹(33) is 2.

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In response to the query, we can state that As a result, the cubic equation factored form is: f(x) = (x+3)(x+1)(x-2) (x-2)

An equation is a mathematical statement that proves the equality of two expressions connected by an equal sign '='. For instance, 2x – 5 = 13. Expressions include 2x-5 and 13. '=' is the character that links the two expressions. A mathematical formula that has two algebraic expressions on either side of an equal sign (=) is known as an equation. It depicts the equivalency relationship between the left and right formulas. L.H.S. = R.H.S. (left side = right side) in any formula.

A cubic polynomial's graph is the one that is presented. We must determine the polynomial's x-intercepts or roots in order to determine its factored form.

The graph reveals the polynomial's three real roots, which are -3, -1, and 2.

As a result, the polynomial's factored form is:

f(x) = a(x+3)(x+1) (x-2)

where an is a constant that establishes the polynomial's leading coefficient. Using the graph's point (0,-6) as a reference, we may determine the value of a:

f(0) = a(0+3)(0+1)(0-2) = -6

If we condense this phrase, we get:

-6a = -6

When we multiply both sides by -6, we get:

a = 1

As a result, the cubic polynomial's factored form is:

f(x) = (x+3)(x+1)(x-2) (x-2)

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Answer:

If the question is x^2 + x - 20 = 0,

x = -4,5

However, if the question is x^2 - x - 20 = 0,

x = 4, -5

Step-by-step explanation:

WARNING: Your question is incorrect and so, I have tweaked it to make it correct

Completing the square of (x^2 + x - 20):

(x^2 - x) - 20

= (x^2 - x + (1/2)^2 - (1/2)^2) - 20

= (x^2 - x + (1/4))^2 - 1/4 - 20

= (x-1/2)^2 - 81/4

Hence,

(x-1/2)^2 - 81/4 = 0

(x-1/2)^2 = 81/4

x-1/2 = + or - 9/2

x = 9/2 + 1/2 (OR) x = -9/2 + 1/2

x = 5 (OR) x = -4

Hence,

x = -4,5 (CONSIDERING THE QUESTION IS x^2 + x - 20 = 0)

Feel free to mark this as brainliest! :)

Answer:

[tex]\large\boxed{\mathtt{Area = 586.2cm^{2}.}}[/tex]

Step-by-step explanation:

[tex]\textsf{We are asked to find the area of this figure.}[/tex]

[tex]\textsf{In order to make this simpler, draw a line between the rectangle, and the semi-circle.}[/tex]

[tex]\textsf{We should identify the formulas needed for the areas of the rectangle, and semi-circle.}[/tex]

[tex]\large\underline{\textsf{For the Semi-Circle:}}[/tex]

[tex]\mathtt{Area = 1/2( pi(radius)^{2}).}[/tex]

[tex]\large\underline{\textsf{For the Rectangle:}}[/tex]

[tex]\mathtt{Area = Length \ x \ Width.}[/tex]

[tex]\textsf{Let's find the area of the Rectangle first.}[/tex]

[tex]\mathtt{Area = 15 \ x \ 24}[/tex]

[tex]\mathtt{Area = 360cm^{2}.}[/tex]

[tex]\textsf{For the Semi-Circle, the radius is 1/2 of the Diameter. (24)}[/tex]

[tex]\mathtt{Area = 1/2( pi(12)^{2}).}[/tex]

[tex]\mathtt{Area = 1/2(144 \pi).}[/tex]

[tex]\mathtt{Area = 72 \pi.}[/tex]

[tex]\mathtt{Area \approx 226.2cm^{2}.}[/tex]

[tex]\textsf{Add the areas together to represent the area of the figure.}[/tex]

[tex]\large\underline{\textsf{Add:}}[/tex]

[tex]\mathtt{360cm^{2} + 226.2cm^{2} = 586.2cm^{2}. }[/tex]

[tex]\large\boxed{\mathtt{Area = 586.2cm^{2}.}}[/tex]

The vertices of the image are given as follows:

X'(16.5, -9), Y'(13.5,-4.5) and Z'(4.5,-1.5).

The original vertices of the triangle are given as follows:

X(6, -2), Y(4,1) and Z(-2,3).

The vertices of the image are obtained applying the transformations in the context of the problem.

The first transformation is T(5,-4), which is a translation, meaning that 5 is added to the x-coordinate of each vertex, while 4 is subtracted from the y-coordinate of each vertex, hence:

X'(11, -6), Y'(9,-3) and Z'(3,-1).

The final transformation is the dilation with a scale factor of 1.5, meaning that each coordinate of each vertex is multiplied by 1.5, hence:

X'(16.5, -9), Y'(13.5,-4.5) and Z'(4.5,-1.5).

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three time three equal 9

Answer:

We can simplify the expression as follows:

4^3 * 4^4 / 4^9

First, we can simplify the terms in the numerator by adding the exponents of 4:

4^3 * 4^4 = 4^(3+4) = 4^7

Now, we can substitute this value in the expression:

4^7 / 4^9

To divide powers with the same base, we can subtract their exponents:

4^(7-9) = 4^(-2)

Therefore, the simplified expression is:

4^3 * 4^4 / 4^9 = 4^(-2)

So, the final answer is 1/16 or 0.0625.

Answer: √910 . 0.5 . 0.5= √227.5≈ 15.08.

Step-by-step explanation: The number x of correct guesses in n=910

trials is a binomial random variable with probably p= 0.5 of success. The standard deviation of such a variable is √np(1 -- p ). In this case, that's √910 . 0.5 . 0.5=√227.5≈ 15.08.

Such a variable would be well modeled by a normal distribution with mean np=  910 . 0.5= 455 and standard deviation √222.75 ≈ 15. using the 68-95.99.7 rule-of-thumb , about 68%  of the people who guessed on such a exam would score between 440 and 470, about 95% of such people would  score between 425 and 485, and about 99.7% of such people would score between 410 and 500

Answer:

5:2

Step-by-step explanation:

5:2

5/2

2.5

4:5

4/5

0/8

Answer:

5:2 is greater

Step-by-step explanation:

a ratio is like a division or fraction, divide 5:2 and 4:5 and you will see that you have 2.5 and 0.8, so 5:2 is greater

We can cοnclude that the variance frοm this randοm sample is nοt significantly different frοm 9.0 at a 5% level οf significance.

In mathematics, variance is a measure οf the spread οr dispersiοn οf a set οf data values. It is calculated as the average οf the squared differences frοm the mean. Variance is cοmmοnly used in statistics tο assess the variability οf a data set and is an impοrtant parameter in many statistical analyses.

Tο test whether the variance frοm this randοm sample is equal tο 9.0, we can use a chi-square test. The test statistic fοr this hypοthesis test is calculated as:

chi-square = (n - 1) × sample variance / pοpulatiοn variance

where n is the sample size.

Substituting the given values, we get:

chi-square = (9 - 1) × 8.01 / 9.0

chi-square ≈ 6.71

The critical chi-square value at a 5% level οf significance and 8 degrees οf freedοm (n - 1) is 15.51. Since the calculated chi-square value οf 6.71 is less than the critical chi-square value οf 15.51, we fail tο reject the null hypοthesis that the variance frοm this randοm sample is equal tο 9.0. In οther wοrds, there is nοt enοugh evidence tο suggest that the variance frοm this randοm sample is different frοm 9.0 at a 5% level οf significance.

Therefοre, we can cοnclude that the variance frοm this randοm sample is nοt significantly different frοm 9.0 at a 5% level οf significance.

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The equation for the hyperbola is [tex]y^{2} -4x^{2} =144[/tex]

A hyperbola is a type of conic section, formed by the intersection of a plane with two cones that have a common vertex. It consists of two separate curves that are mirror images of each other, each of which has two branches that extend to infinity.

By Given figure,

C = (0, 0)

V (0, ±6)

b = 6

equation of asymptotes;  [tex]y=[/tex] ±[tex]\frac{a}{b}x[/tex]

then, y = ± [tex]\frac{a}{6} * x[/tex]

given the asymptotes, y = ±2x

by comparing we get, a/6 = 2

a = 12

We know the equation of hyperbola,   [tex]\frac{y^{2} }{a^{2} } -\frac{x^{2} }{b^{2} } =1[/tex]

putting the values of a and b,     [tex]\frac{y^{2} }{12^{2} } -\frac{x^{2} }{6^{2} } =1[/tex]

[tex]\frac{y^{2} }{144} } -\frac{x^{2} }{36} } =1[/tex]

After Simplification, [tex]y^{2} -4x^{2} =144[/tex]

Therefore, the equation for the hyperbola is [tex]y^{2} -4x^{2} =144[/tex]

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As a result, the compound inequality has the following solutions: m > 6 or m < -2 as by split both sides by -5 and reverse the inequality.

An inequality in mathematics is a comparison between two values or expressions that specifies whether they are equal, greater than, or less than one another. "!=" (greater than or equal to), and "=" (less than or equal to) are used to represent inequality (not equal to). For instance, the inequality "x > 2" denotes that the value of x is more than 2, while the inequality "5 7" denotes that 5 is less than 7. Variables may be utilized in inequalities, which can be used to indicate a variety of values or circumstances that satisfy the inequality.

given

Let's resolve each inequality in turn, then add the results:

4 - m < -2 (subtract 4 from both sides) (subtract 4 from both sides)

-m < -6 (divide both sides by -1 and invert the inequality) (divide both sides by -1 and reverse the inequality)

m > 6

12 < -5m + 2 (subtract 2 from both sides) (subtract 2 from both sides)

10 < -5m (split both sides by -5 and reverse the inequality) (divide both sides by -5 and reverse the inequality)-2 > m

As a result, the compound inequality has the following solutions: m > 6 or m < -2 as by split both sides by -5 and reverse the inequality.

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The solution to the system of equations on the graph is (1, 5)

From the question, we have the following parameters that can be used in our computation:

The graph

On the graph, we have two lines that intersect at a point

Using the above as a guide, we have the following:

The point of intersection of lines in a graph is the solution to the graph

In this case, they intersect at (1, 5)

So, the solution is (1. 5)

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Complete question

Given the system of equations represented by the graph

What is the solution?

The width of the book cover made by Meals for his brother is 40 cm.

An area is just a surface that is free of objects. With a shape's length and breadth, one may compute the area of the object. Measured in terms of feet (ft), yards (yd), inches (in), etc., length is a one-dimensional quantity. The size of a form, however, is a two-dimensional measurement. Because of this, it is measured in square units like square inches (in2), square feet (ft 2), square yards (yd2), etc. Corners and edges are present on the majority of items and forms. Calculating the area of a certain form takes into account the length and breadth of these edges.

The area of the rectangle is:

A = lw

Given that the area is 890 cm and the height is 22 1/4 cm.

890 = (22 1/4)w

22 1/4 = (4 * 22 + 1) / 4 = 89 / 4

890 = (89 / 4)w

w = 40

Hence, the width of the book cover is 40 cm.

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The complete question is:

[tex]csc(-x)-1~~ = ~~\cfrac{cos^2(x)}{csc(-x)+1} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{cos^2(x)}{csc(-x)+1}\implies \cfrac{1-sin^2(x)}{\frac{1}{sin(-x)+1}}\implies \cfrac{1-sin^2(x)}{\frac{1}{-sin(x)+1}}\implies \cfrac{[1-sin(x)][1+sin(x)]}{ ~~ \frac{-1+sin(x)}{sin(x)} ~~ } \\\\\\\ [1-sin(x)][1+sin(x)]\cdot \cfrac{sin(x)}{-1+sin(x)} \\\\\\\ [1-sin(x)][1+sin(x)]\cdot \cfrac{sin(x)}{-[1-sin(x)]} \\\\\\\ [1+sin(x)][-sin(x)] \implies \boxed{-sin(x)-sin^2(x)} \\\\[-0.35em] ~\dotfill[/tex]

[tex]csc(-x)-1\implies \cfrac{1}{sin(-x)}-1\implies \cfrac{1}{-sin(x)}-1\implies \boxed{\cfrac{-1-sin(x)}{sin(x)}}[/tex]

now, as you can see is a no dice, before doing many simplifications, I often check them graphically, so I know what's cooking, anyhow, Check the picture below, they are definitely not the same, the red one is the one on the right-hand-side.

The transformation indicated on the graph is a

Rotation

A rotation transformation is a transformation in which a geometric figure is rotated around a fixed point called the center of rotation.

This transformation changes the position and orientation of the figure, but the shape and size remain the same.

The center of rotation is the point around which the figure rotates, and the angle of rotation determines how far the figure rotates around the center.

The center of rotation is on the graph is the origin and the angle of rotation is 90 degrees counterclockwise

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The Answer to the questions Two ninths, Seven over twenty-Four, and Five Twelfths for understanding this we have to learn fractions.

Any number can be called a Fraction if it is in the form of [tex]\frac{p}{q}[/tex] where q≠0.

where p is the numerator of the fraction and q is the denominator of the fraction. The numerator can be 0 but the denominator never is zero.

The elements of a whole or entire set are expressed by fractions. A fraction consists of two components. The numerator is the figure at the top of the line. The denominator is the figure that occurs below the line.

The solutions to the questions are given below :

a. five-ninths minus two-sixths = Two-ninths

b. four-sixths  minus three-eighths  = Seven over twenty Four

c. four-sixths minus three-twelfths  = Five Twelfths

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Answer:

a. X ~ N(6.1, 1.2^2)

b. The median seedless watermelon weight is 6.1 kg.

c. The Z-score for a seedless watermelon weighing 7 kg is 0.75.

d. The probability that a randomly selected watermelon will weigh more than 5.1 kg is 0.7967.

e. The probability that a randomly selected seedless watermelon will weigh between 5.3 and 6 kg is 0.2454.

f. The 85th percentile for the weight of seedless watermelons is 7.2437 kg.

Step-by-step explanation:

a. X ~ N(6.1, 1.2^2)

b. The median of a normal distribution is equal to the mean, so the median seedless watermelon weight is 6.1 kg.

c. The Z-score for a seedless watermelon weighing 7 kg can be calculated as:

Z = (7 - 6.1) / 1.2 = 0.75

Therefore, the Z-score is 0.75.

d. To find the probability that a randomly selected watermelon will weigh more than 5.1 kg, we need to standardize the value using the formula:

Z = (X - μ) / σ

where X is the value we want to find the probability for, μ is the mean, and σ is the standard deviation.

Z = (5.1 - 6.1) / 1.2 = -0.8333

Using a standard normal distribution table or a calculator, we can find the probability that Z is greater than -0.8333 to be 0.7967.

Therefore, the probability that a randomly selected watermelon will weigh more than 5.1 kg is 0.7967.

e. To find the probability that a randomly selected seedless watermelon will weigh between 5.3 and 6 kg, we need to standardize the values and find the area under the normal curve between the two Z-scores. The Z-scores for 5.3 kg and 6 kg are:

Z1 = (5.3 - 6.1) / 1.2 = -0.6667

Z2 = (6 - 6.1) / 1.2 = -0.0833

Using a standard normal distribution table or a calculator, we can find the probability that Z is between -0.6667 and -0.0833 to be 0.2454.

Therefore, the probability that a randomly selected seedless watermelon will weigh between 5.3 and 6 kg is 0.2454.

f. The 85th percentile for the weight of seedless watermelons can be found by finding the Z-score that corresponds to the 85th percentile of a standard normal distribution. Using a standard normal distribution table or a calculator, we can find the Z-score to be 1.0364.

To find the corresponding weight, we can use the formula:

Z = (X - μ) / σ

1.0364 = (X - 6.1) / 1.2

X = 7.2437

Therefore, the 85th percentile for the weight of seedless watermelons is 7.2437 kg.

Hope this helps! I'm sorry if it doesn't. If you need more help, ask me! :]

Answer:

a) N(6.1,1.2)
b) 6.1
c) 0.75
d) 0.7977   (or 79.77%)
e) 0.2143    (or 21.43%)
f) 7.3435 kg (using excel)    or      7.348 kg (using normal tables)

Step-by-step explanation:

a) normal distribution just need to be define we his mean and his standard deviation. You just need a sample higher than 30 or to be specified the population is normally distributed
X≈N(μ,σ)= N(6.1,1.2)

b) The median and mean are not necessarily the same, for a normal distribution, which is a symmetric distribution, those values are just the same


c) The equation for Z score is given by:

[tex]z=\frac{x-u}{\sigma}[/tex]

Replacing values:

[tex]Z=\frac{7-6.1}{1.2} =0.75[/tex]

d) first find the Zvalue for 5.1

[tex]Z=\frac{5.1-6.1}{1.2} =-0.83[/tex]

Now, find the probability from  Normal  Distribution table
P(Z>0.83) = 0.7977

e)

first find the Zvalue fo5.3 and 6

[tex]Z=\frac{5.3-6.1}{1.2} =-0.67[/tex]


[tex]Z=\frac{6-6.1}{1.2} =-0.08[/tex]

Now find probabilities from  Normal Distribution  table . Notice you need to subtract   P(Z>0.08)-P(Z>0.67) if you use a positive table.

P(-0.67<z<-0.08) = 0.2143


f) Find the Z score from a   Normal  Distribution table that give you an area of 0.8500 (or the closest value), im using excel for this one since the answer from tables have only TWO decimals and can be problematic if you need more decimal places.

this gives a Z of 1.036433389

now use the Zscore equation but solve for X

[tex]z\sigma+u=x[/tex]

x = 1.036433389(1.2)+6.1 = 7.3437   (Using excel)

If i use a table, the closes is 1.04 (0.8508 which is not exactly 0.85)

x = 1.04(1.2)+6.1= 7.348 (using table)

so be carefully with the input if the website needs the decimals places or not.

In this case, the preferred alternative is Alternative 1, since it has a present value of $60,623.

An investment is the use of money to buy assets or take part in activities with the expectation of a financial gain or other benefit in the future. It can take many forms, such as purchasing shares, bonds, mutual funds, real estate, artwork, or antiques.

The present value of an investment can be calculated by taking the amount of the future cash flow and discounting it by an appropriate rate of return. In this case, the appropriate rate of return is 15%. The present value of Alternative 1 can be calculated by taking the total cash flows of $105,000 and discounting them by 15%:

Present Value of Alternative 1 = $105,000 / (1 + 0.15)3 + (1 + 0.15)7 = $60,623

The present value of Alternative 2 can be calculated in the same manner:

Present Value of Alternative 2 = $8,000 / (1 + 0.15)7 = $4,923

The discounted cash flow criterion states that the preferred alternative is the one with the higher present value. Therefore, in this case, the preferred alternative is Alternative 1, since it has a present value of $60,623 compared to the present value of Alternative 2, which is $4,923.

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In a linear equation,The equation to represent the situation is y = 15 + 30x.

The number of hours Sophia used for the guitar training after paying 75 dollars is 2 hours.

What in mathematics is a linear equation?

An algebraic equation with simply a constant and a first-order (linear) term, such as y=mx+b, where m is the slope and b is the y-intercept, is known as a linear equation. The variables in the previous sentence, y and x, are referred to as a "linear equation with two variables" at times.

Sophia's mother pays the instructor $75 for the guitar lessons.

The equation that can be used to represent the given situation is as follows:

let

x = number of hours used for the training

y = total cost

Therefore,

y = 15 + 30x

Now, Sophia's mother spent 75 dollars for her daughters training. Let's find the hours Sophia used.

Therefore,

75 = 15 + 30x

75 - 15 = 30x

60 = 30x

divide both sides by 30

x = 60 / 30

x= 2

Therefore, she used 2 hours for the training.

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Answer:

the actual food cost is $20,000.

Step-by-step explanation:

To calculate the actual food cost, we need to use the following formula:

Actual Food Cost = Beginning Inventory + Purchases - Ending Inventory + Other Credits

Substituting the given values in the formula, we get:

Actual Food Cost = $12,000 + $20,000 - $14,000 + $2,000

Actual Food Cost = $20,000

Therefore, the actual food cost is $20,000.

The slope of the equation -9x + 3y = 27 is greater and this line has a greater rate of change.

The pace at which one quantity changes in relation to another quantity is known as the rate of change function. Simply said, the rate of change is calculated by dividing the amount of change in one thing by the equal amount of change in another. In the slope-intercept form for a line, the rate of change m for a linear function is written as y=mx+b, whereas the rate of change of functions is defined as (f(b)-f(a))/b-a.

The standard equation of the line is given as:

y = mx + c

where, m is the slope of the line.

For the given equation of lines, transform them into standard equation:

-9x + 3y = 27

3y = 9x + 27

Divide both sides of the equation with 3:

y = 3x + 9

Here, the slope of the equation is 3.

For, -3x + 4y = 24

4y = 3x + 24

Divide both sides of the equation by 4:

y = 3/4x + 6

The slope of this line is 3/4.

Comparing the slope of the two lines we see that,

3 > 3/4

Hence, the slope of the equation -9x + 3y = 27 is greater and this line has a greater rate of change.

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Answer:

Therefore, you would need to deposit $1,068.19 each month to have $700,000 in 35 years with a 7% interest rate.

Step-by-step explanation: