PLEASE HELP NEED TO GET MY GRADE UP!!!!! ILL GIVE BRAINLST!!!!!!!

Answer:

x = 5/6

Step-by-step explanation:

From the question, we are told that the value of the perimeter equals the value of the area

mathematically, the area of a rectangle is the product of its side lengths

we have this as;

5 * 4x = 20x

The formula for the perimeter is;

P = 2(l + b)

P = 2(5 + 4x)

So we equate this to the area above

20x = 2(5 + 4x)

20x/2 = 5 + 4x

10x = 5 + 4x

10x - 4x = 5

6x = 5

x = 5/6

Answer:

Step-by-step explanation:

To solve the given equation \(\sf x - y = 4 \\\), we can perform the following calculations:

a) To find the value of \(\sf 3(x - y) \\\):

\(\sf 3(x - y) = 3 \cdot 4 = 12 \\\)

b) To find the value of \(\sf 6x - 6y \\\):

\(\sf 6x - 6y = 6(x - y) = 6 \cdot 4 = 24 \\\)

c) To find the value of \(\sf y - x \\\):

\(\sf y - x = - (x - y) = -4 \\\)

Therefore:

a) The value of \(\sf 3(x - y) \\\) is 12.

b) The value of \(\sf 6x - 6y \\\) is 24.

c) The value of \(\sf y - x \\\) is -4.

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The given order of integration is in the form of triple integrals, where the integration is performed first over the z-coordinate, then over the y-coordinate, and finally over the x-coordinate.

To obtain an equivalent integral in the given order of integration, we can use the substitution method and change the order of integration.

First, we integrate with respect to z from 0 to √(4-x^2), then we integrate with respect to y from -√(4-x^2) to √(4-x^2), and finally, we integrate with respect to x from 2 to 0. This can be expressed as:

∫2 0 ∫-√(4-x^2) √(4-x^2) ∫0 f(x,y,z) dz dy dx

We can then change the order of integration to obtain an equivalent integral in the form ∫ba∫g(z)f(z)∫k(x,z)h(x,z)f(x,y,z)dydxdz by integrating w.r.t. x first, then w.r.t. y, and finallyw.r.t. z.

This gives us:

∫0 √4-y^2 ∫-√(4-x^2) √(4-x^2) ∫0 f(x,y,z) dz dx dy

Using the limits of integration for each variable, we can rewrite this as:

∫0 2 ∫-√(4-y^2) √(4-y^2) ∫0 f(x,y,z) dz dy dx

Therefore, the equivalent integral in the given order of integration is ∫0 2 ∫-√(4-y^2) √(4-y^2) ∫0 f(x,y,z) dz dy dx.

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A. Emma; Bob. Emma has a comparative advantage in milkshakes, while Bob does not have a comparative advantage in either milkshakes or ice cream sundaes. Emma also has an absolute advantage in both goods.

Comparative advantage refers to the ability to produce a good or service at a lower opportunity cost compared to another producer. In this case, Emma can produce 17 milkshakes in the same time it takes her to produce 102 ice cream sundaes. On the other hand, Bob can only produce 6 milkshakes in the same time it takes him to produce 30 ice cream sundaes. Emma's opportunity cost of producing milkshakes is lower than Bob's, indicating that she has a comparative advantage in milkshakes.

Additionally, Emma has an absolute advantage in both milkshakes and ice cream sundaes. She can produce more milkshakes (17) than Bob (6) in the same time period. Similarly, she can produce more ice cream sundaes (102) than Bob (30) in an hour. Absolute advantage refers to the ability to produce more of a good or service using the same amount of resources or the ability to produce the same amount using fewer resources. Therefore, based on the given information, the correct answer is A. Emma; Bob.

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The predicted number of adults in Oak City whose main source of news is newspapers or the radio is 85

To predict the number of adults in Oak City whose main source of news is newspapers or the radio, we need to add the number of adults who answered "Newspapers" to the number of adults who answered "Radio".

According to the sample data

Number of adults who answered "Newspapers": 64

Number of adults who answered "Radio": 21

Therefore, the predicted number of adults in Oak City whose main source of news is newspapers or the radio we have to use the addition

64 + 21 = 85

Rounding this answer to the nearest whole number, we get

85 ≈ 85

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The given question is incomplete, the complete question is:

There are 44,000 adults living in Oak City. In examining attitudes toward the news, a research group asked a random sample of Oak City adults "What is your main source of news?" The results are shown below. Main Source of News Newspapers Number of Adults 64 Internet 80 Television 126 Radio 21 Other 40 Based on the sample, predict the number of adults in Oak City whose main source of news is newspapers or the radio. Round your answer to the nearest whole number.

We have the following:

therefore,

the answer is 3

Answer:

z= -3

Step-by-step explanation:

-2z+3+7z= -12

5z+3= -12

5z= -12 -3

5z= -15

z= -3

Answer: \(4x+23\)

Step-by-step explanation:

Given

The length of the bottom of the triangle is x

Another side is \(2x+13\)

The last side is \(x+10\)

Perimeter is the sum of the side of triangles

\(\Rightarrow \text{Perimeter}=x+2x+13+x+10\\\Rightarrow \text{Perimeter}=4x+23\)

\(\dfrac{16}{32} = \dfrac{O}{14}\\\\\implies \dfrac 12 = \dfrac O{14}\\\\\implies O = \dfrac{14}2 = 7\)

ab^2 = 15^2 + 8^2
ab^2 = 289
ab = 17

The Demonstration Concep, two

Step-by-step explanation:A lo largo del texto nuestro enfoque a la geometría es en su mayor parte visual, como debe ser para que el libro sea efectivo

Answer:

b=-3

Step-by-step explanation:

-11b+7=40

-7         -7

-11b=40-7

-11b=33

-11b/-11=33/-11

b=-3

CHECK:

-11b+7 = 40

Substitute -3 for b:

-11(-3)+7=40

Solve:

33+7=40

40=40

Therefore b does in fact equal -3.

I hope this helped you.

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Have a great day!!!!!!!!!

Answer:

1. 15-5x 2. 54+18x 3. 3x+15 4. 28x+56

Step-by-step explanation:

I dont get  if you need this or the real answer if you need the real answer let me know and I will give you the real answer. :) Have a good day!

Answer:

10xy

Step-by-step explanation:

-5(-2)=10

Answer:

10xy

Step-by-step explanation:

Negative 5 times negative 2 equlas 10

Our answer is 10xy.

I hope it helps!:)

Answer:

CM = 4

Step-by-step explanation:

set CM=x and BM=y       AM= 7-y

right triangle BMC: x² = 5² - y² = 25 - y²   ... (1)

right triangle AMC: x² = (4√2)² - (7-y)² = 32 - 49 +14y - y² = -17 + 14y -y² ...(2)

(1)-(2): 0 = 42 - 14y

14y = 42

y (BM) = 3

x² (CM²) = 25 - 3² = 16

x (CM) = 4  (height is positive)

Answer:

Nominal decisions can be broken into two distinct categories: dichotomous decisions and polychotomous decisions.

we have the expression

therefore

The answer is

The resulting function g(x) = (x-5)^3 + 3 shows a horizontal translation to the right by 5 units and vertical translation up by 3 units

Quadratic functions are functions that has a leading degree of 2.

Given the parent function as shown:

f(x) = x^3

The resulting function g(x) = (x-5)^3 + 3 shows a horizontal translation to the right by 5 units and vertical translation up by 3 units

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Answer:A

Step-by-step explanation:

edge 2023

The inequality shaded in the graph is given as follows:

y ≥ 5x/2 + 3.

The slope-intercept equation for a linear function is presented as follows:

y = mx + b

In which:

The graph crosses the y-axis at y = -3, hence the intercept b is given as follows:

b = 3.

When x increases by 2, y increases by 5, hence the slope m is given as follows:

m = 5/2.

Then the equation of the line is given as follows:

y = 5x/2 + 3.

The line is a solid line, and values above it are plotted, hence the inequality is given as follows:

y ≥ 5x/2 + 3.

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Answer:

(a^4+b^4)/(a^2b^2)

Step-by-step explanation:

Answer:

Step-by-step explanation:

The probability that the mean GPA of a random sample of 20 students selected from this university  is 3.10 or higher is 10.93%

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Problems of normally distributed samples are solved using the z-score methods.

We know that, in a set with mean and standard deviation , the z-score of a measure X is given by:

                              Z = X - μ/σ

After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean  and standard deviation , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean  and standard deviation .

For a Skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

In this problem, we have that:

μ = 3.02 , σ = 0.29 , n = 20 and s = 0.29/√ 20 = 0.0648

Find the probability that the mean GPA of a random sample of 20 students selected from this university is 3.10 or higher.

This is 1 subtracted by the p- value of Z when X = 3.10. So

By the Central Limit Theorem:

             Z = X - μ / s

       ⇒  Z = 3.1 - 3.02/ 0.0648

       ⇒ Z = 1.23

The Z = 1.23 has a P- value of 0.8907

∴ 1 - 0.8907 = 0.1093

Now, for  getting the percentage,

0.1093 × 100% = 10.93%

10.93% probability that the mean GPA of a random sample of 20 students selected from this university is 3.10 or higher.

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Answer:

7

Step-by-step explanation:

Hope this helped!

(a) Yes, the air in the house would exceed the long-term health standard if the groundwater is in equilibrium with the air in the house.

(b) The budget equation for TCE is dct/dt = k(c+ - CT) - Q(ca - CT).

(c) The characteristic time t for TCE to build up in the house from zero to unhealthful (long-term exposure) if there is no ventilation is given by t = Ahk/Q. For the given values, t = 1.4 years. A large value of t indicates a significant TCE problem.

(d) The minimum value of Q to keep CT below 20 ppm is 160 cfm. This is more than the residential requirement of 40 cfm.

(a) The Henry's Law constant for TCE is 0.4, which means that the concentration of TCE in air at equilibrium with water is 40% of the concentration in water. The groundwater concentration is 110 ppm, so the equilibrium air concentration would be 44 ppm. This exceeds the long-term health standard of 25 ppm.

(b) The flux of TCE through the floor is given by FT = k(c+ - CT), where k is a measured constant, c+ is the concentration of TCE in the groundwater, and CT is the concentration of TCE in the air in the house. The normal strategy for remediating vapor intrusion is to install fans in the house that ventilate the house with outside air. The outside ambient air has a concentration of ca. The budget equation for TCE is dct/dt = k(c+ - CT) - Q(ca - CT), where dct/dt is the rate of change of the concentration of TCE in the house, k is the flux constant, c+ is the concentration of TCE in the groundwater, CT is the concentration of TCE in the air in the house, Q is the ventilation rate, and ca is the concentration of TCE in the outside air.

(c) The characteristic time t for TCE to build up in the house from zero to unhealthful (long-term exposure) if there is no ventilation is given by t = Ahk/Q, where Ah is the area of the house, k is the flux constant, and Q is the ventilation rate. For the given values, t = 1.4 years. A large value of t indicates a significant TCE problem.

(d) The minimum value of Q to keep CT below 20 ppm is 160 cfm. This is more than the residential requirement of 40 cfm. The difference is due to the fact that the groundwater concentration is much higher than the ambient air concentration.

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Difference of Two Products has the expressions

(4)(5)-2(8)

and 5(2)(7)-8(8)

Product of Two Quotients

3-2/5-8 . 1-7/9-4

and (11÷5)(1-4/6-12)

The difference of two numbers is the result of subtracting these two numbers.

The product of two or more numbers is the result of multiplying two numbers

Difference of Two Products has the expressions

(4)(5)-2(8)

and 5(2)(7)-8(8)

Product of Two Quotients

3-2/5-8 . 1-7/9-4

and (11÷5)(1-4/6-12)

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19 3/5

yeah..

Answer:

Y = -7x + 24

Step-by-step explanation:

Answer:

( 4,6)

Step-by-step explanation:

To move the point 2 units to left, subtract 2 from the x coordinate

V'( 6-2,3)

V'( 4,3)

Now we move it 3 units up, which means we are adding 3 to the y coordinate

V' ( 4, 3+3)

V' ( 4,6)

The new point is ( 4,6)

Therefore, the equation for the linear function f(x) is f(x) = (-2/9)x + 1/9.

To find an equation for the linear function f(x), we can use the point-slope form of a linear equation, which is:

y - y₁ = m(x - x₁)

where (x₁, y₁) is a point on the line, and m is the slope of the line.

Given the points (-4, 1) and (5, -1), we can calculate the slope (m) using the formula:

m = (y₂ - y₁) / (x₂ - x₁)

m = (-1 - 1) / (5 - (-4))

= -2 / 9

Now, we can select one of the points and substitute the values into the point-slope form to find the equation. Let's choose the point (-4, 1):

y - 1 = (-2/9)(x - (-4))

y - 1 = (-2/9)(x + 4)

y - 1 = (-2/9)x - 8/9

Adding 1 to both sides:

y = (-2/9)x - 8/9 + 1

y = (-2/9)x - 8/9 + 9/9

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

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The explained variation, or regression sum of squares, is equal to 0 when there is no linear relationship between the independent and dependent variables in a given dataset.

In this case, the best-fit line would be a horizontal line, and the slope of the regression line would be 0. This indicates that changes in the independent variable do not have any impact on the dependent variable, resulting in an explained variation of 0.

To summarize, the explained variation (regression sum of squares) is equal to 0 when there is no linear relationship between the independent and dependent variables in the dataset.

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