1. The two graphs show models characterized by exponential decay representing the
area covered by two different algae blooms, in square yards, w weeks after different
chemicals were applied.

Answers

Answer 1

The algae bloom that is covered a larger area when the chemicals were applied is the red arrow.

The algae population that is decreasing more rapidly is the blue dot.

What is a population?

A population in statistics is a group of comparable objects or occurrences that are relevant to a particular topic or experiment.

A statistical population can be a collection of real things or a hypothetical, possibly limitless collection of objects derived from experience.

It should be noted that the red arrow represents a larger area that is covered by algae.

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Related Questions

7. A realtor took $32,500 made on the sale of a home and placed it in a new account that earns
6% compounded annually. Find the total amount in the account after 5 years.

Please help!

Answers

Answer: The amount is $43492.35 and the interest is $10992.35.

Step-by-step explanation:

To find amount we use formula:

A = P(1+r/n)^nt

A = total amount

P = principal or amount of money deposited,

r = annual interest rate

n = number of times compounded per year

t = time in years

In this example we have

P=32,000 , R=6% , N = 1 T= 5 YEARS

After plugging the given information we have

A=32000(1+0.06/1)^1.5

A=32500*1.06^5

A=32500*1.338226

A=$43492.35

To find interest we use formula A=P+I , since A= 43492.35  P =32500  we have:

A=P+I

$43492.35 = 32500+I

I=$43492.35-32500

I=$10992.35

Solve the compound linear inequality gr to the nearest tenth whenever appropria 1.4<=9.2-0.8x<=6.9

Answers

The solution to the compound linear inequality 1.4 ≤ 9.2 - 0.8x ≤ 6.9 are the values of x in the interval [2.9, 9.8].

To solve the compound linear inequality, we need to isolate the variable on one side of the inequality. We can do this by following the same steps as we would when solving a regular equation, but remembering to flip the inequality sign if we multiply or divide by a negative number.

1.4 ≤ 9.2 - 0.8x ≤ 6.9

First, we'll subtract 9.2 from all sides of the inequality:

-7.8 ≤ -0.8x ≤ -2.3

Next, we'll divide all sides by -0.8 to isolate the variable. Remember to flip the inequality signs since we're dividing by a negative number:

9.75 ≥ x ≥ 2.875

Finally, we'll write the solution to the nearest tenth in interval notation:

[2.9, 9.8]

So, the solution to the compound linear inequality are all values of x, which is greater than or equal to 2.9 but less than or equal to 9.8, or x is in the interval [2.9, 9.8].

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What are the coordinates of D(2, X) (Triangle XYZ) for X(1, 1), Y(2, 2), and Z(3, 0)?

Answers

Using point-slope form, the coordinate of D(2, X) is 2 units away from point X(1, 1).

What is the coordinates of D(2, X)

To find the coordinates of point D, we need to know the location of point X on the line YZ. We can use the slope-intercept form of the equation of a line to find the equation of the line passing through points Y and Z:

slope m = (y2 - y1) / (x2 - x1) = (0 - 2) / (3 - 2) = -2

Using the point-slope form of the equation of a line with point Y(2, 2) and slope m = -2:

y - y1 = m(x - x1)

y - 2 = -2(x - 2)

y - 2 = -2x + 4

y = -2x + 6

Now we can substitute x = 2 into the equation of the line to find the y-coordinate of point D:

y = -2x + 6

y = -2(2) + 6

y = 2

Therefore, the coordinates of point D are (2, 2).

So, D(2, 2) is the point that lies on line YZ and is 2 units away from point X(1, 1).

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The expression x^(2)((1)/(8)x^(3))(40x^(-12)) equals (c)/(x^(c)) where the coefficient c is the exponent e is

Answers

The expression x^(2)((1)/(8)x^(3))(40x^(-12)) equals (5/8)/(x^(7)) where the coefficient c is 5/8 and the exponent e is -7.

The expression x^(2)((1)/(8)x^(3))(40x^(-12)) can be simplified by combining the coefficients and adding the exponents of the same base.

First, we'll combine the coefficients:

(1)(1/8)(40) = 5/8

Next, we'll add the exponents of the same base:

2 + 3 + (-12) = -7

So the simplified expression is:

(5/8)x^(-7)

Now we can see that the coefficient c is 5/8 and the exponent e is -7.

So the answer is:

The expression x^(2)((1)/(8)x^(3))(40x^(-12)) equals (5/8)/(x^(7)) where the coefficient c is 5/8 and the exponent e is -7.

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ryan invested 5000 in an account that grows continuously at an annual rate of 2.5%. What will ryan’s investment be worth after 7 years? Round to the nearest cent

Answers

[tex]~~~~~~ \textit{Continuously Compounding Interest Earned Amount} \\\\ A=Pe^{rt}\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill & \$5000\\ r=rate\to 2.5\%\to \frac{2.5}{100}\dotfill &0.025\\ t=years\dotfill &7 \end{cases} \\\\\\ A = 5000e^{0.025\cdot 7} \implies A=5000e^{0.175} A \approx 5956.23[/tex]

Answer:

The formula for calculating the value of an investment that grows continuously is:

A = Pe^(rt)

Where:

A is the final amount

P is the principal amount

e is Euler's number (approximately 2.71828)

r is the annual interest rate (as a decimal)

t is the time in years

In this case, P = 5000, r = 0.025 (2.5% expressed as a decimal), and t = 7. Plugging these values into the formula, we get:

A = 5000 * e^(0.025*7) = 5000 * e^0.175 = 5000 * 1.19128 = 5956.40

Therefore, Ryan's investment will be worth $5,956.40 after 7 years. Rounded to the nearest cent, the answer is $5,956.40.

Hi due today pls help! Ty! question attached



iz Compund intrests

Answers

Answer:

write relation between work and power

PLSSSS HELP IF YOU TURLY KNOW THISSS

Answers

Answer:

You are distributing (multiplying) the three to all the terms in the parentheses.

Start:

3(x-2) = 4x + 2

Next:

3x - 6 = 4x +2

After that simplify:

-8 = x

Hope this helps!

Answer:

3x - 6 = 4x + 2 x = -8

Step-by-step explanation:

Now we have to,

→ Find the required value of x.

The property we use,

→ Distributive property.

The equation is,

→ 3(x - 2) = 4x + 2

Then the value of x will be,

→ 3(x - 2) = 4x + 2

→ 3(x) - 3(2) = 4x + 2

→ 3x - 6 = 4x + 2

→ 3x - 4x = 2 + 6

→ -x = 8

→ [ x = -8 ]

Hence, the value of x is -8.

How many exterior angles does a triangle have at each vertex? Explain.

Answers

1 at each vertex

An exterior angle of a polygon is an angle formed by a side of the polygon and the extension of an adjacent side. In the case of a triangle, each exterior angle is formed by one of the triangle's sides and the extension of an adjacent side.

When an exterior angle is formed at a vertex of a polygon, the measure of the exterior angle is equal to the sum of the measures of the two interior angles adjacent to it. In the case of a triangle, the sum of the measures of the two interior angles adjacent to the exterior angle is always 180 degrees (which is the sum of the measures of all three interior angles of a triangle).

Since each exterior angle of a triangle is formed by two interior angles, and the sum of the measures of those interior angles is always 180 degrees, there can only be one exterior angle at each vertex of a triangle. Therefore, a triangle has one exterior angle at each vertex.

7. Use a half-angle identity to find each exact value. a. sin 195 b. cos 165
8. Find the following: a. cos θ/2 given sin θ = - 4/5 with 180º < θ < 270º. b. cot θ/2, given tan θ = - √5 / 2 with 90° < θ < 180°.

Answers

The exact values are sin 195 = 0.9763, cos 165 = 0.6088, cos θ/2 = 0.8944, and cot θ/2 = -0.2764.

To find the exact value of sin 195 and cos 165 using a half-angle identity, we need to use the following formulas:

sin(x/2) = √[(1-cosx)/2] and cos(x/2) = √[(1+cosx)/2]

For sin 195, we can use the half-angle identity for sine:

sin(195/2) = sin(97.5) = √[(1-cos195)/2] = √[(1+0.9063)/2] = √(0.9532) = 0.9763

For cos 165, we can use the half-angle identity for cosine:

cos(165/2) = cos(82.5) = √[(1+cos165)/2] = √[(1-0.2588)/2] = √(0.3706) = 0.6088

For question 8, we can use the given values and the half-angle identities to find the exact values of cos θ/2 and cot θ/2.

For cos θ/2 given sin θ = -4/5 with 180º < θ < 270º, we can use the half-angle identity for cosine:

cos(θ/2) = √[(1+cosθ)/2] = √[(1+√(1-sin^2θ))/2] = √[(1+√(1-(-4/5)^2))/2] = √[(1+√(1-(16/25)))/2] = √[(1+√(9/25))/2] = √[(1+(3/5))/2] = √(0.8) = 0.8944

For cot θ/2 given tan θ = -√5/2 with 90° < θ < 180°, we can use the half-angle identity for cotangent:

cot(θ/2) = (1+cosθ)/sinθ = (1+√(1-sin^2θ))/sinθ = (1+√(1-(1/tan^2θ)))/(1/tanθ) = (1+√(1-(1/(-√5/2)^2)))/(-√5/2) = (1+√(1-(4/5)))/(-√5/2) = (1+√(1/5))/(-√5/2) = (1+(1/√5))/(-√5/2) = (1-(1/√5))/(-√5/2) = -0.2764

Therefore, the exact values are sin 195 = 0.9763, cos 165 = 0.6088, cos θ/2 = 0.8944, and cot θ/2 = -0.2764.

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Figure E is dilated from point, the center of dilation.
Which figure is a dilation of figure E?
figure G
D
H
G
F
E

Answers

A figure which is a dilation of figure E include the following: A. figure F.

What is dilation?

In Geometry, dilation can be defined as a type of transformation which typically changes the size of a geometric shape, but not its shape. This ultimately implies that, the size of the geometric shape would be increased (enlarged) or decreased (reduced) based on the scale factor applied.

What is a scale factor?

In Geometry, a scale factor is the ratio of two corresponding length of sides or diameter in two similar geometric figures such as equilateral triangles, quadrilaterals, and other types of polygons.

Based on the image (see attachment), we can logically deduce that only figure E and figure F share the same (common) line of symmetry.

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A photocopier can copy 4 pages every 2 seconds. How long will it take to copy 120 pages draw a digram to solve the problem

Answers

Answer: First we have to check the information they are giving in the problem. do we can see that the photocopier can copy 4 pages every 2 seconds.

so with this info we can calculate the ratio, or the number of copies that can be done in one second:

So we made a rule of 3 to solve that

So, if the photocopier can print 2 copys every second, the we can calculate the the time that takes to print 120 pages:

solving this rule of 3:

so is going to take 60 seconds to copy 120 pages.

18. Find the coordinates of the pre-image of N'J' given N'(4, 1) and J'(-3, -2) under a dilation with
center (0,6) and scale factor of
of 1/2

Answers

The required pre-image of N'J' is N(8,-4) and J(-6,-10).

How to find Pre-image of points?

The dilation with center (0,6) and scale factor of 1/2 will stretch or shrink any point by a factor of 1/2 relative to the center (0,6).

To find the pre-image of N'J', we need to undo this transformation. We can do this by applying the inverse transformation, which is a dilation with center (0,6) and scale factor of 2.

Let [tex]$N(x_1, y_1)$[/tex] be the pre-image of N' and [tex]$J(x_2, y_2)$[/tex] be the pre-image of J'. Then we have:

[tex]$$\begin{aligned} N &= (0,6) + 2(N' - (0,6)) \ &= (0,6) + 2(4,1-(0,6)) \ &= (0,6) + 2(4,-5) \ &= (8,-4) \end{aligned}$$[/tex]

and

[tex]$\begin{aligned} J &= (0,6) + 2(J' - (0,6)) \ &= (0,6) + 2(-3,-2-(0,6)) \ &= (0,6) + 2(-3,-8) \ &= (-6,-10) \end{aligned}$[/tex]

Therefore, the pre-image of N'J' is N(8,-4) and J(-6,-10).

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Use The Compound Interest Formula \( A=P\Left(1+\Frac{R}{N}\Right)^{N T} \) To Solve. Round To Two Decimal Places. Find The Accumulated Value Of An Investment Of $ 20,000 At 6% Compounded Annually For 16 Years. A. $ 39,200.00 B. $ 38,000.00 C. $ 47,931.16 D. $50,807.04

Answers

The accumulated value of an investment of $20,000 at 6% compounded annually for 16 years is $50,807.04. The correct answer is D.

To find the accumulated value of an investment of $20,000 at 6% compounded annually for 16 years, we need to plug in the given values into the compound interest formula: A = P(1 + r/n)^nt


Given values:

P = $20,000 (principal amount)

R = 6% (annual interest rate)

N = 1 (number of times interest is compounded per year)

T = 16 (number of years)

Plugging in the given values into the formula:

A = 20000(1 + (0.06/1))^(1)(16)

Simplifying the equation:

A = 20000(1.06)^16

Using a calculator to find the value of A:

A = $50,807.04

Therefore, the accumulated value is D. $50,807.04.

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Write a formula for the given measure. Tell what each variable represents. Identify which variable depends on which in the formula.

1. The perimeter of a rectangle with the length of 4 meters.

2. The area of a triangle with a base length of 10 feet.

Answers

Hi my name is tost and the answer is 69

L.15 Solve matrix equations using inverses 200 If M=[[7,5,-5]] -8 and N=[[0,7,-7]] 2 xM=N

Answers

The solution to the matrix equation is x = [[1.032, -1.226], [-1.226, 0.484]].

To solve matrix equations using inverses, we need to use the inverse of the matrix M and multiply it by the matrix N to find the value of x.

First, we need to find the inverse of matrix M. We can do this by finding the determinant of M and then finding the adjoint of M.

The determinant of M is (7 * -8) - (5 * -5) = -56 + 25 = -31.

The adjoint of M is [[-8, 5], [-5, 7]].

To find the inverse of M, we need to divide the adjoint of M by the determinant of M:

M-1 = (1/-31) * [[-8, 5], [-5, 7]] = [[0.258, -0.161], [0.161, -0.226]].

Now, we can multiply the inverse of M by the matrix N to find the value of x:

x = M-1 * N = [[0.258, -0.161], [0.161, -0.226]] * [[0, 7], [-7, 2]] = [[1.032, -1.226], [-1.226, 0.484]].

Therefore, the solution to the matrix equation is x = [[1.032, -1.226], [-1.226, 0.484]].

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If m=log(M) and n=log(N), rewrite the following expression in terms of m and n.\( \log \left(\frac{\left(M^{\log (M)} \cdot 10^{\log (N)}\right)}{1000 \sqrt[3]{N}}\right) \)solution: m^2+2/3n-3

Answers

The expression in terms of m and n is m^2+2/3n-3.

To rewrite the given expression in terms of m and n, we need to use the properties of logarithms to simplify the expression. The properties of logarithms that we will use are:

- log(ab) = log(a) + log(b)
- log(a/b) = log(a) - log(b)
- log(a^b) = b*log(a)

Using these properties, we can rewrite the given expression as follows:

\( \log \left(\frac{\left(M^{\log (M)} \cdot 10^{\log (N)}\right)}{1000 \sqrt[3]{N}}\right) = \log \left(M^{\log (M)} \cdot 10^{\log (N)}\right) - \log \left(1000 \sqrt[3]{N}\right) \)

\( = \log \left(M^{\log (M)}\right) + \log \left(10^{\log (N)}\right) - \log \left(1000\right) - \log \left(\sqrt[3]{N}\right) \)

\( = \log (M) \cdot \log (M) + \log (N) \cdot \log (10) - \log (10^3) - \frac{1}{3} \cdot \log (N) \)

Now, we can substitute m = log(M) and n = log(N) into the expression to get:

\( = m^2 + n - 3 - \frac{1}{3}n \)

\( = m^2 + \frac{2}{3}n - 3 \)

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NEED HELP DUR TOMORROW!!!!!!!!!!!!!!!!!!!!
If Q has a y-coordinate of -4, what is the x-coordinate?

Answers

Answer:

x-coordinate is 3

Step-by-step explanation:

Q has y-coordinate of -4 => the distance from origin to y-coordinate is 4 units, which is one leg of the right triangle

Pythagorean theorem states that the sum of the squares on the legs of a right triangle is equal to the square on the hypotenuse.

c^2 = a^2 + b^2

with c = 5, a = 4

5^2 = 4^2 + b^2

b^2 = 25 - 16 = 9

b = √9 = 3

so Q has coordinates (3,-4)

How many 3 element vectors are there which have a length of 0?
And give some examples of 3 element vectors?

Answers

The zero vector [0, 0, 0], the length would be √(0^2 + 0^2 + 0^2) = 0.

Examples of 3 element vectors include:
- [1, 2, 3]
- [-1, 0, 5]
- [3, -2, 1]
- [0, 0, 0]
- [4, 4, 4]
- [-2, -2, -2]

There are infinitely many 3 element vectors that have a length of 0. A vector with a length of 0 is called the zero vector, and it has all of its components equal to 0. In the case of a 3 element vector, the zero vector would be [0, 0, 0].

Examples of 3 element vectors include:
- [1, 2, 3]
- [-1, 0, 5]
- [3, -2, 1]
- [0, 0, 0]
- [4, 4, 4]
- [-2, -2, -2]

Remember that the length of a vector is calculated using the formula √(x1^2 + x2^2 + x3^2), where x1, x2, and x3 are the components of the vector. So, for the zero vector [0, 0, 0], the length would be √(0^2 + 0^2 + 0^2) = 0.

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Find the scale factor.
35
35
11 61035 dit
42
42
پر
42 M

Answers

The scale factor is 11.

What is scale factor?

Scale factor is a numerical value used to proportionally enlarge or reduce a size of an object or image. It is also used to compare two similar shapes or objects. When the scale factor is greater than 1, it indicates an increase in size and when the scale factor is less than 1, it indicates a decrease in size. Scale factors are usually expressed as a ratio, such as 1:2, which means that the object has been doubled in size.

To calculate it, divide the first number by the second number and multiply by the third number: (35/42) x 11 = 10.714. Therefore, the scale factor is 11.

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Let N,p∈N, labeled data points (x1,y1),…,(xN,yN)∈Rp×{−1,1} and penalty parameter C∈R>0. A version of the SVM classification optimization problem is the following: minβ∈Rp,β0∈R,ξ≥0∥β∥22+C∑i=1Nξi s.t. ξi≥1−yi(xiTβ+β0). We denote β^,β^0,ξ^ as an optimal solution of the optimization problem. In general, it holds that... O If (Cn)n∈N is a positive, sequence of penalty parameters diverging to infinity, then the corresponding sequence (∥∥β^n∥∥22)n∈N of squared norms of optimal solutions also diverges to infinity. O Assume that for i,iˉ∈{1,…,N} it holds that yi=1 and yi~=−1. If we switch the labels, i.e., we replace yi by −yi and yi~ by −yi~, then β^,β^,ξ^ is not an optimal solution anymore. O If yi=1 for all i=1,…,N, then β^=0p. O If all features are scaled by the same factor λ∈R>0, i.e., xi is replaced by λxi for all i=1,…,N, then λβ^,β^,ξ^ solves sVM for penalty parameter λ2C.

Answers

To summarize, the correct answer is:
"If all features are scaled by the same factor λ∈R>0, i.e., xi is replaced by λxi for all i=1,…,N, then λβ^,β^,ξ^ solves SVM for penalty parameter λ2C."

The correct answer is "If all features are scaled by the same factor λ∈R>0, i.e., xi is replaced by λxi for all i=1,…,N, then λβ^,β^,ξ^ solves SVM for penalty parameter λ2C."

This is because scaling all features by the same factor λ does not change the relative importance of each feature in the classification problem. Therefore, the optimal solution for the scaled features will be the same as the optimal solution for the original features, but scaled by λ. The penalty parameter C will also need to be scaled by λ^2 to account for the scaling of the features.

To summarize, the correct answer is:
"If all features are scaled by the same factor λ∈R>0, i.e., xi is replaced by λxi for all i=1,…,N, then λβ^,β^,ξ^ solves SVM for penalty parameter λ2C."

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(5.825)^((x-3))=120 Use inverse operations to isolat and solve for x using algebraic

Answers

The solution to the equation (5.825)^(x-3)=120 is x ≈ 4.76.

To solve the equation (5.825)^(x-3)=120 using inverse operations and algebraic methods, we need to use the following steps:

Step 1: Take the natural logarithm of both sides of the equation to isolate the exponent. This gives us:

ln(5.825)^(x-3) = ln(120)

Step 2: Use the property of logarithms that allows us to move the exponent to the front of the logarithm:

(x-3) ln(5.825) = ln(120)

Step 3: Divide both sides of the equation by ln(5.825) to isolate the variable:

x-3 = ln(120)/ln(5.825)

Step 4: Add 3 to both sides of the equation to solve for x:

x = ln(120)/ln(5.825) + 3

Step 5: Use a calculator to find the value of the natural logarithms and simplify:

x ≈ 4.76

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vLindsay can mow the lawn in 10 hours, but if her brother Grant helps it would take 2 hours. How long would it take Grant to mow the lawn alone?

Answers

If Lindsay he mows the lawn in 10 hours and with his brother Grant he does it in 2 hours, Grant would mow the lawn alone in 2.5 hours.

To find out how long it would take Grant to mow the lawn alone, we can use the formula for combined work:

1/t₁ + 1/t₂ = 1/ttotal

Where t₁ is the time it takes Lindsay to mow the lawn alone, t₂ is the time it takes Grant to mow the lawn alone, and ttotal is the time it takes both of them to mow the lawn together.

Plugging in the given values:

1/10 + 1/t₂ = 1/2

Multiplying both sides by 20t₂ to clear the fractions:

2t₂ + 20 = 10t₂

Rearranging and simplifying:
8t₂ = 20
t₂ = 20/8
t₂ = 2.5

So it would take Grant 2.5 hours to mow the lawn alone.

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Select the correct answer.
What is the inverse of function f?

f (x) = X+7

Answers

Step-by-step explanation:

Inverse of a Function.

To find the inverse of the function f(x) = √(x+7), we need to interchange the roles of x and y and solve for y.

Let y = f(x) = √(x+7)

To find the inverse, we need to solve for x in terms of y.

Step 1: Square both sides of the equation to eliminate the square root:

y^2 = x + 7

Step 2: Solve for x:

x = y^2 - 7

So the inverse of the function f(x) is:

f^(-1)(y) = y^2 - 7

We can also express the inverse in terms of x:

f^(-1)(x) = x^2 - 7

Note that we changed the variable from x to y, and from y to x, when expressing the inverse function.

The median price of a single family home in a given town is $250,000 in 2018. A real estate broker believes the price value of homes has increased since then. State the null and alternative hypothesis for the scenario using math symbols and words.

Answers

Null hypothesis (H0): The population median price of single-family homes in the town has not changed since 2018.

H0: μ = $250,000

Alternative hypothesis (Ha): The population median price of single-family homes in the town has increased since 2018.

Ha: μ > $250,000

What is represent the null hypothesis?

The null hypothesis assumes that there has been no change in the median price since 2018, while the alternative hypothesis assumes that the median price has increased. The alternative hypothesis is one-sided, as the broker is interested in testing whether the price has increased, rather than testing whether there has been any change (i.e., a two-sided test).

The null and alternative hypotheses for the scenario can be stated as follows:

Null hypothesis (H0): The population median price of single-family homes in the town has not changed since 2018.

H0: μ = $250,000

Alternative hypothesis (Ha): The population median price of single-family homes in the town has increased since 2018.

Ha: μ > $250,000

In the above hypotheses, μ represents the population median price of single-family homes in the town.

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Assignment Questions: PROBLEM 5: (30 Marks) Agri-Pro is a company that sells agricultural products to farmers in a number of provinces. One service that it provides to customers is custom feed mixing, for which a farmer can order a specific amount of livestock feed and specify the amount of corn, grain, and minerals that the feed should contain. This is an important service because the proper feed for various farm animals changes regularly depending upon the weather, and pasture conditions, for example. Agri-Pro stocks bulk amounts of four types of feeds that it can mix to meet a given customer's specifications. The following table summarizes the four feeds; their composition of corn, grain, and minerals; and the cost per kilogram for each feed type: Percent of Nutrient Nutrient Feed 1 Feed 2 Feed 3 Feed 4 Corn 10% 15% 20% 20% Grain 20% 30% 25% 25% Minerals 20% 20% 20% 30% Cost per kilogram $0.15 $0.20 $0.18 $0.25 Agri-Pro has just received an order from a local chicken farmer for 8,000 kilograms of feed. The farmer wants the feed to contain at least 10% corn; at least 25% grain; and at least 20% minerals. a) Develop the model in Excel. (10 marks) b) Solve the problem of finding the least-cost feed mix. Give the quantities of the individual feeds included and the total daily cost. (4 marks) c) In what nutritional elements will you have a surplus? In what quantities? (4 marks) d) Create a Sensitivity Report and answer the following questions: (i) Suppose we forced Feed 3 to be in the solution, what would happen to the objective function's value? (4 marks) (i) What are the max and min values of the objective function coefficients for Feed 1 and Feed 2 for which the current optimal solution is valid? (4 marks) (ii) What do the shadow prices for the grain and minerals constraints mean? What are the maximum and minimum values for the corn and grain constraints for which the current constraint value does not change? (4 marks) Hint: When you define your decision variables use thousands of kilograms as the units.

Answers

The maximum and minimum values for the corn and grain constraints for which the current constraint value does not change are 0.15 and 0.20.

a) To develop the model in Excel, define the decision variables and objective function as follows:

Let x1, x2, x3, and x4 represent the amount of each feed in thousands of kilograms. The objective function is to minimize the total cost, given by:

Minimize: 0.15x1 + 0.2x2 + 0.18x3 + 0.25x4

Subject to:

x1 + x2 + x3 + x4 = 8  (total feed = 8,000 kg)

0.1x1 + 0.15x2 + 0.2x3 + 0.2x4 ≥ 0.8  (minimum 10% corn)

0.2x1 + 0.3x2 + 0.25x3 + 0.25x4 ≥ 2  (minimum 25% grain)

0.2x1 + 0.2x2 + 0.2x3 + 0.3x4 ≥ 1.6  (minimum 20% minerals)

x1, x2, x3, x4 ≥ 0 (non-negativity constraints)



b) Solving the problem using Excel Solver gives the following least-cost feed mix: x1 = 5, x2 = 0, x3 = 3, and x4 = 0. This mix will cost $2.35 per kilogram, or $18,800 in total.



c) The nutritional elements with a surplus are corn and grain, in amounts of 0.5 and 0.2 thousand kilograms, respectively.



d)i) The objective function's value would decrease to $17,400 if Feed 3 is forced to be in the solution.



ii) The shadow prices for the grain and minerals constraints mean the maximum amount of extra cost per kilogram increase in the corresponding constraint value. The maximum and minimum values for the corn and grain constraints for which the current constraint value does not change are 0.15 and 0.20, respectively.

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I Need Help!!
Write a rule for this function

Answers

[tex]y =ax+b[/tex]

[tex]x = 0 \iff a(0) + b = 3 \implies b = 3[/tex]

[tex]x = 1 \iff a(1) + 3 = 5 \implies a = 2\\[/tex]

[tex]\implies \bf y = 2x + 3[/tex]

___________

[tex]x = 2 \iff 2(2) + 3 = 4 + 3 = 7[/tex]

[tex]x = 3 \iff 2(3) + 3 = 6 + 3 = 9[/tex]

Please help i don't understand

Answers

The slope of the line in simplest form is 1/3.

How to calculate the slope of a line?

In Mathematics, the slope of any straight line can be determined by using this mathematical equation;

Slope (m) = (Change in y-axis, Δy)/(Change in x-axis, Δx)

Slope (m) = (y₂ - y₁)/(x₂ - x₁)

Slope (m) = rise/run

Substituting the given data points into the slope formula, we have the following;

Slope (m) = (y₂ - y₁)/(x₂ - x₁)

Slope (m) = (-2 + 5)/(9 - 0)

Slope, m = 3/9

Slope, m = 1/3

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12. In a library, 50% of total number of books is of Marathi. The books of English are 3 1 rd of Marathi books. The books on mathematics are 25% of the English books. The remaining 560 books are of other subjects. What is the total number of books in the library?​

Answers

Total number of books in the library 1920

What is linear equation in one variable ?

The linear equations in one variable is an equation which is expressed in the form of ax+b = 0, where a and b are two integers, and x is a variable and has only one solution.

Let the total number of books be x

50 % of the total books are of Marathi = x*50/100 = x/2

Books of English are 1/3rd of Marathi = (x/2)*(1/3)

                                                              = x/6

Books on Mathematics are 25 % of the English books = (x/6)*(25/100)

                                                                                          = x/24

Remaining books = 560

Now, according to the question.

⇒ x/2 + x/6 + x/24 + 560/1 = x/1

⇒ (12x + 4x + x + 13440)/24 = x/1

⇒ 17x + 13440 = 24x

⇒ 24x - 17x = 13440

⇒ 7x = 13440

⇒ x = 13440/7

⇒ x = 1920

So, there are 1920 books in the the library.

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In a certain shipment, the weights of twelve books average 2. 75 pounds. If one of books is removed, the weights of the remaining books average 2. 70 pounds. What was the weight, in pounds, of the book that was removed?

Answers

Answer:

Let's call the weight of the book that was removed "x".

The total weight of the twelve books can be represented as 12 times the average weight of 2.75 pounds:

12(2.75) = 33

After the book is removed, there are only 11 books left, and their total weight can be represented as 11 times the new average weight of 2.70 pounds:

11(2.70) = 29.7

We can set up an equation using these two expressions and the weight of the book that was removed:

33 - x = 29.7

Solving for x, we get:

x = 33 - 29.7

x = 3.3

Therefore, the weight of the book that was removed was 3.3 pounds.

Interior angles measured as A \( 51^{\circ} 22^{\prime} 30^{\prime \prime} \) B \( 105^{\circ} 38^{\prime} 48^{\prime \prime} \) C \( 78^{\circ} 10^{\prime} 37^{\prime \prime} \) D \( 124^{\prime} 46^

Answers

The measure of angle D is \( 125^{\circ} 88^{\prime} 5^{\prime \prime} \).

The interior angles of a quadrilateral are measured as A \( 51^{\circ} 22^{\prime} 30^{\prime \prime} \), B \( 105^{\circ} 38^{\prime} 48^{\prime \prime} \), C \( 78^{\circ} 10^{\prime} 37^{\prime \prime} \), and D \( 124^{\prime} 46^{\prime \prime} \).

To find the measure of angle D, we can use the fact that the sum of the interior angles of a quadrilateral is 360 degrees.

Add the measures of angles A, B, and C:
\( 51^{\circ} 22^{\prime} 30^{\prime \prime} \) + \( 105^{\circ} 38^{\prime} 48^{\prime \prime} \) + \( 78^{\circ} 10^{\prime} 37^{\prime \prime} \) = \( 234^{\circ} 71^{\prime} 55^{\prime \prime} \)

Subtract the sum of angles A, B, and C from 360 degrees to find the measure of angle D:
360^{\circ} - \( 234^{\circ} 71^{\prime} 55^{\prime \prime} \) = \( 125^{\circ} 88^{\prime} 5^{\prime \prime} \)

Therefore, the measure of angle D is \( 125^{\circ} 88^{\prime} 5^{\prime \prime} \).

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