How is this equation correctly solved?

Answer:

i think 220

Step-by-step explanation:

because if he swim 250 then 30 less it would be 220

The fit statistic that can be used across different series that are in fact measured in different units is; MAPE

There are different statistics models in this regards such as;

Mean Absolute Error (MAE)

Mean Absolute Scaled Error (MASE)

Accuracy Percent (Accuracy %)

Mean Squared Error (MSE)

Root Mean Squared Error (RMSE)

Mean Absolute Percent Error (MAPE)

Now, we are told that we need the fit statistic that can be used across different series that are in fact measured in different units.

The correct one will be Mean Absolute Percent Error (MAPE) because the average absolute percent difference between the values that are fitted by the model and the observed data values.

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Answer:

C

Step-by-step explanation:

It is C

It means 7 x 5

you have the 7 add up 5 times

Answer:

the answer was 9 (red)

Step-by-step explanation:

Answer:

66 in^2

Step-by-step explanation:

Imagine that the figure is a whole square, where the space between is filled in.

Find the area of the imaginary square (l x w):

9 in. x 9 in. = 81 in^2

Lets make that whole square the original figure it used to be (take away the space we “filled in”)

Lets find the area of the space we filled in:

5 in x 3 in= 15 in^2

Subtract the imaginary square’s area by the area of the space that was originally blank:

81 in^2 - 15 in^2 = 66 in^2

66 in^2 IS YOUR FINAL ANSWER, that is the real area of the composite figure you have.

Hope this helps!

Answer:

The value of \(x\):

\(\boxed {x = \frac{3y}{4} - 6}\)

The value of \(y\):

\(\boxed {y = \frac{4x}{3} + 8}\)

Step-by-step explanation:

Solve for the value of \(x\):

\(-4x + 3y = 24\)

-Subtract \(3y\) to both sides:

\(-4x + 3y - 3y = 24 - 3y\)

\(-4x = 24 - 3y\)

-Divide both sides by \(-4\):

\(\frac{-4x}{-4} = \frac{24 - 3y}{-4}\)

\(\boxed {x = \frac{3y}{4} - 6}\)

-----------------------------------------------------------------------

Solve for the value of \(y\):

\(-4x + 3y = 24\)

-Add \(4x\) to both sides:

\(-4x + 4x + 3y = 24 + 4x\)

\(3y = 24 + 4x\)

-Remember that the equation is in Standard Form:

\(3y = 4x + 24\)

-Divide both sides by \(3\):

\(\frac{3y}{3} = \frac{4x + 24}{3}\)

\(\boxed {y = \frac{4x}{3} + 8}\)

Answer:

$692.72

Step-by-step explanation:

Given data

The total area of tile = 260 squared feet

cost per squared foot of tile= $2.49

Hence the total for 260 squared feet cost will be

=260*2.49

=$647.4

Let us find the amount of 7% Tax

=7/100*647.4

=0.07*647.4

=$45.318

Hence the amount spent in all is

=45.318+647.4

=$692.72

Answer:

Step-by-step explanation:

32.00 increased by 25% is 40.00

The increase is 8.00

Answer:

210 in.

Step-by-step explanation:

Volume of a box = V = length x width x height

You don't have to know which number is the length, width and height since you are multiplying all of them together anyways.

V = 7in x 10in x 3in

V = 210 in

The volume of the box 210 cubic inches.

The volume of a cuboid is defined as the total number of cubic units occupied by the cuboid completely. A cuboid is a three-dimensional solid figure, having 6 square faces. Volume is nothing but the total space occupied by an object.

The dimensions of given box is length=7 inches, width=10 inches and height=3 inches.

We know that, volume of cuboid is length×width×height

Now, volume =7×10×3

= 210 cubic inches

Therefore, the volume of the box 210 cubic inches.

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Answer:

Step-by-step explanation:

A multistep income statement is a kind of statement of earnings that separates a business's revenue and expenses into multiple categories to help calculate gross profit and net income more precisely. Grice Incorporated's 2011 multistep income statement is shown below:

Grice Incorporated Multistep Income Statement For the Year Ended December 31, 2011Sales Revenue $275,000Cost of Goods Sold: Beginning Inventory $0Add: Purchases $200,000. Goods Available for Sale $200,000Less: Ending Inventory $0Cost of Goods Sold $200,000Gross Profit $75,000. Operating Expenses: Selling Expenses $16,000Administrative Expenses $36,000Total Operating Expenses $52,000Income from Operations $23,000Other Income $95,000Net Income $118,000b.

The 2012 multistep income statement for Grice Incorporated is prepared based on the assumption that normal operating activities grow evenly by 10%. The statement is shown below:

Grice Incorporated Multistep Income Statement For the Year Ended December 31, 2012Sales Revenue $302,500Cost of Goods Sold: Beginning Inventory $0Add: Purchases $220,000Goods Available for Sale $220,000Less: Ending Inventory $0Cost of Goods Sold $220,000Gross Profit $82,500Operating Expenses: Selling Expenses $17,600Administrative Expenses $39,600Total Operating Expenses $57,200Income from Operations $25,300Other Income $0Net Income $25,300c.

The percentage change in net income between 2011 and 2012 is calculated as follows:

Change in Net Income = (Net Income 2012 - Net Income 2011) / Net Income 2011= (25,300 - 118,000) / 118,000= -78.1%Therefore, the percentage change in net income between 2011 and 2012 is -78.1%.d.

No, the stockholders should not have expected the results determined in requirement "e" because the percentage change in net income between 2011 and 2012 is -78.1%. The decrease in net income was caused by the absence of extraordinary gains in 2012, which were present in 2011. However, the growth in normal operating activities had a positive impact on the company's gross profit and income from operations in 2012. Therefore, the stockholders' expectations should have been based on a comprehensive analysis of the company's financial performance in both years.

The multistep income statement helps to present the financial results of a business with more accuracy by separating revenues and expenses into multiple categories. It also assists in identifying trends and growth rates of the company. In the case of Grice Incorporated, the net income decreased by 78.1% in 2012 due to the absence of extraordinary gains in 2011, but the growth in normal operating activities had a positive impact on the gross profit and income from operations.

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The smallest positive integer y is the product of these additional factors y = 2¹⁴ * 3⁴ * 7².

To find the smallest positive integer y such that the product xy is a perfect cube, we first need to find the prime factorization of x. Given that x = 7 * 24 * 48, we can break down the factors further:

x = 7 * (2³ * 3) * (2⁴ * 3)
x = 2⁷ * 3² * 7

Now, for xy to be a perfect cube, the exponents of all prime factors must be divisible by 3. Currently, the prime factorization of x has exponents 7, 2, and 1 for 2, 3, and 7, respectively.

To make each exponent divisible by 3, we must multiply x by additional factors:

For 2: (2⁷)³ = 2²¹, so we need 2⁽²¹⁻⁷⁾ = 2¹⁴
For 3: (3²)³ = 3⁶, so we need 3⁽⁶⁻²⁾ = 3⁴
For 7: (7¹)³ = 7³, so we need 7⁽³⁻¹⁾ = 7²

Hence, the smallest positive integer y is the product of these additional factors:

y = 2¹⁴ * 3⁴ * 7²

So, y is the smallest positive integer such that xy is a perfect cube.

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Answer:

1. LHJ

2. AB

3. Acute

4. Complement 30, supplement 120

5. AOD

6. 61

7. acute

8. 36

9. Octogon

Step-by-step explanation:

The test used to determine whether or not first-order autocorrelation is present is the Durbin-Watson test.

1. Fit a regression model to the data.

2. Obtain the residuals, which represent the differences between the observed values and the predicted values from the regression model.

3. Calculate the Durbin-Watson statistic, which is a ratio of the sum of squared differences between adjacent residuals to the sum of squared residuals.

4. Compare the calculated Durbin-Watson statistic to critical values from a Durbin-Watson table or use statistical software to determine if there is significant autocorrelation.

5. The Durbin-Watson statistic ranges from 0 to 4, where a value around 2 suggests no autocorrelation, a value below 2 indicates positive autocorrelation, and a value above 2 indicates negative autocorrelation.

6. By analyzing the Durbin-Watson statistic, researchers can make conclusions about the presence or absence of first-order autocorrelation in the regression model.

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Answer:C

Step-by-step explanation:

Answer:

C. 3, 2, 0, -1, -3

Step-by-step explanation:

The more negative a number is, the lesser it is.

Count backwards: 4, 3, 2, 1, 0, -1, -2, -3, -4, ...

I hope this helped!

Answer:x+3

Step-by-step explanation:

5×3=15

5+3=8x

Answer:

A

Step-by-step explanation:

Required rate of retum for each stock is:

Based on the CAPM and the analyst's expected return estimates, Stock A is overvalued, Stock B is fairly valued, and Stock C is undervalued.

How to determine the required rate of return for each stock.?

The CAPM equation is Rj = Rf + Bj x (Rm - Rf), where Rj is the required rate of return for the stock, Rf is the risk-free rate, Bj is the beta of the stock, and Rm is the market return.

Using the graph provided, we can see that Stock A has a beta of 0.5, Stock B has a beta of 1.0, and Stock C has a beta of 1.5. Given that the risk-free rate is 6% and the market return is 10%, we can calculate the required rate of return for each stock:

Next, we can compare the analyst's expected return estimates for each stock to their required rate of return to determine if they are undervalued, overvalued, or fairly valued. If the expected return is higher than the required rate of return, the stock is undervalued and may be a good investment.

If the expected return is lower than the required rate of return, the stock is overvalued and may not be a good investment. If the expected return is equal to the required rate of return, the stock is fairly valued.

For Stock A, the analyst expects a return of 7%, which is lower than the required rate of return of 8%. Therefore, Stock A is overvalued.

For Stock B, the analyst expects a return of 10%, which is equal to the required rate of return of 10%. Therefore, Stock B is fairly valued.

For Stock C, the analyst expects a return of 13%, which is higher than the required rate of return of 12%. Therefore, Stock C is undervalued.

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\(3^{9} . 2^{12} .5^{11}\)

Power :

An expression that represents repeated multiplication of the same factor is called a power.

Factor: The number 5 is called the base, and the number 2 is called the exponent. The exponent corresponds to the number of times the base is used as a factor.

the expression 5 x 5. This expression can be written in a shorter way using something called exponents.

5⋅5=5^2

An expression that represents repeated multiplication of the same factor is called a power.

The number 5 is called the base, and the number 2 is called the exponent. The exponent corresponds to the number of times the base is used as a factor.

3 to the first power 3

4^2 4 to the second power or 4 squared 4 ∙ 4

5^3 5 to the third power or 5 cubed 5 ∙ 5 ∙ 5

2^6 2 to the power of six

= \((3.5)^{4} (2.3)^{5} (2.5)^{7}\)

= \(3^{4+5} .2^{5+7} .5^{4+7}\)

=\(3^{9} . 2^{12} .5^{11}\)

Ans : \(3^{9} . 2^{12} .5^{11}\)

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Answer:

6/100 = x/40

Step-by-step explanation:

6% is represented by 6/100, x is the variable in the proportion, and 40 is the whole you are finding the percentage of

Let p be the probability of an adult over 50 wearing glasses for driving. Since we don't know the value of p, we can't use the binomial distribution directly. However, we can use the normal approximation to the binomial distribution since n is large (assuming n * p >= 10 and n * (1-p) >= 10).

Let X be the number of adults over 50 wearing glasses for driving in a random sample of n adults. Then X ~ Binomial(n, p) can be approximated by a normal distribution with mean µ = n * p and standard deviation σ = sqrt(n * p * (1-p)).

We want to find the probability that at least six adults over 50 in a random sample of n wear glasses for driving. This is equivalent to finding P(X >= 6) = 1 - P(X < 6) using the normal approximation.

To apply the normal approximation, we need to standardize the random variable X:

Z = (X - µ) / σ

Using continuity correction:

P(X >= 6) = P(X > 5.5)

Z = (5.5 - n * p) / sqrt(n * p * (1-p))

We can use the standard normal distribution table or calculator to find the probability:

P(Z >= (5.5 - n * p) / sqrt(n * p * (1-p)))

Since we don't know the value of p, we can use a conservative estimate of p = 0.5 (assuming 50% of adults over 50 wear glasses for driving). Then:

P(Z >= (5.5 - n * 0.5) / sqrt(n * 0.5 * (1-0.5)))

For example, if we sample n = 100 adults over 50, the probability of at least six wearing glasses is:

P(Z >= (5.5 - 100 * 0.5) / sqrt(100 * 0.5 * (1-0.5)))

= P(Z >= 0.5)

Using a standard normal distribution table or calculator, P(Z >= 0.5) = 0.3085.

Therefore, the probability of at least six adults over 50 wearing glasses for driving in a random sample of 100 is approximately 0.3085 or 30.85%.

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If Sam has three-fourths (3/4) of a yard of pipe, then 6 pieces can he cut the pipe into if each piece is one-eighth (1/8) yard.

In the given question,

Sam has three-fourths (3/4) of a yard of pipe.

We have to find how many pieces can he cut the pipe into if each piece is one-eighth (1/8) yard.

Total length of a yard of pipe is 3/4.

We have to cut the a yard of pipe in the size of 1/8.

Since we have to distribute the 3/4 in 1/8 so we divide 3/4 by 1/8 to find the answer.

Now the expression should be

\(=\frac{3/4}{1/8}\)

To solve this expression multiply 8 on numerator and denominator.

We multiply 8 on both numerator and denominator because when we include any number by our self then we have to perform the  same on both side.

\(=\frac{3/4\times8}{1/8\times8}\)

Simplifying

\(=\frac{3\times2}{1}\)

\(={3\times2}\)

\(=6\)

Hence, if Sam has three-fourths (3/4) of a yard of pipe, then 6 pieces can he cut the pipe into if each piece is one-eighth (1/8) yard.

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Answer:

\( 4,220.16 \: {units}^{3} \)

Step-by-step explanation:

Diameter of cone = 24 units

Radius of cone (r) = 24/2 = 12 units

Height of cone (h) = 28 units

\(V_{cone} = \frac{1}{3} \pi {r}^{2}h \\ \\ = \frac{1}{ 3} \times 3.14 \times {(12)}^{2} \times 28 \\ \\ = \frac{1}{3} \times 3.14 \times 144 \times 28 \\ \\ = 3.14 \times 1,344 \\ \\ = 4,220.16\: {units}^{3} \)

Answer:

x = 20

Step-by-step explanation:

The 3 arcs UV, VW, WX form a semicircle, so sum to 180° , that is

4x + 2 + x + 78 = 180

5x + 80 = 180 ( subtract 80 from both sides )

5x = 100 ( divide both sides by 5 )

x = 20

Answer:

Step-by-step explanation:

y > 3x + 10

y < -3x - 1

You'd graph the given systems of linear inequalities the same way as you graph the linear equations.  

To graph y > 3x + 10, plot the y-intercept, (0, 10), then use the slope, m = 3 (rise 3, run 1), to plot other points on the graph.  Use a dashed line (because of the ">" symbol).  

Follow the same steps for the other linear inequality. Plot the y-intercept, (0, -1), then use the slope, m = -3 (down 3, run 1) to plot other points. Use a dashed line (because of the "<" symbol).  

Pick a test point on either side of the boundary line and plug it into the original problem.  This will help determine which side of the boundary line is the solution.  Plug in a test point that is not on the boundary line.

Use the point of origin, (0, 0) as the test point. Plug in these values into the given systems of linear inequalities to see whether it will provide a true statement.  

y > 3x + 10

0 > 3(0) + 10

0 > 0 + 10

0 > 10 (False statement).  

y < -3x - 1

0 < -3(0) - 1

0 < 0 - 1

0 < -1 (false statement).  

Since the point of origin provided a false statement to the given systems of linear inequalities, you must shade the half-plane region where it doesn't contain the test point.  

You'll do the same process as what I've done for the test point. Plug in the values of (8, 10) into the given systems of linear inequalities. If it provides a false statement, then it means that it is not a solution to the system.  

y > 3x + 10

10 > 3(8) + 10

10 > 24 + 10

10 > 34 (False statement).  

y < -3x - 1  

10 < -3(8) - 1

10 < -24 - 1

10 < -25 (false statement).  

Therefore, (8, 10) is not a solution to the system.    

Answer:

C) 15/y

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Answer:

There are no solutions

Step-by-step explanation:

6(3−5w)=5(4−2w)−20w  

6(3−5w)=5(4−2w)−20w

(6)(3)+(6)(−5w)=(5)(4)+(5)(−2w)+−20w

18+−30w=20+−10w+−20w

−30w+18=(−10w+−20w)+(20)

−30w+18=−30w+20

−30w+18=−30w+20  

−30w+18+30w=−30w+20+30w

18=20  

18−18=20−18

0=2

The probability that the first two electric toothbrushes sold are defective is 0.016.

The probability of an event, say E occurring is:

\(P(E)=\frac{n(E)}{N}\)

Here,

n (E) = favorable outcomes

N = total number of outcomes

Let X = the number of defective electric toothbrushes sold.

The number of electric toothbrushes that were delivered to a store is n = 20.

The number of defective electric toothbrushes is x = 3.

The number of ways to select two toothbrushes to sell from the 20 toothbrushes is:

\((\left {{20} \atop {2}} \right. )\)\(=\frac{20!}{2!(20-2)!} =\frac{20!}{2!18!} =\frac{20*19*18!}{2!*18!} = 190\)

The number of ways to select two defective toothbrushes to sell from the 3 defective toothbrushes is:

\((\left {{3} \atop {2}} \right. )\)\(=\frac{3!}{2!(3-2)!} =\frac{3!}{2!1!} =\frac{3*2!}{1!2!} =3\)

Compute the probability that the first two electric toothbrushes sold are defective as follows:

P (Selling 2 defective toothbrushes) = Favorable outcomes ÷ Total no. of outcomes

\(\frac{3}{190}\\ =0.01579\\=0.016\)

Thus, the probability that the first two electric toothbrushes sold are defective is 0.016.

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Answer:

C

Step-by-step explanation:

First you will get 4dz