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3 years ago

The formula A=lw gives the

Mathematics

1 answer:

Lerok [7]3 years ago

6 0

Answer:

78 ft^2

Step-by-step explanation:

A = lw

l = 13 ft

w = 6 ft

A = 13ft x 6 ft

A = 78 ft^2

Multiply the length by width to find Area. The unit for Area will be feet squared because both the numbers for length and width had the same unit.

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Do bonds reduce the overall risk of an investment portfolio? Let x be a random variable representing annual percent return for t

rjkz [21]

Answer:

COV (all stocks) = 0.55

COV (stocks and bonds) = 0.82

Step-by-step explanation:

Coefficient of Variation is used to measure variability.

It is defined as the ration of standard deviation and the mean.

It can be used to compare variability of two population or two samples.

Formula:

$\text{Coefficient of Variation} = \displaystyle\frac{\text{Standard Deviation}}{\text{Mean}}$

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}$

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

x: 14, 0, 39, 25, 32, 27, 28, 14, 14, 15

$Mean = \frac{208}{10} = 20.8$

$Standard~Deviation = \sqrt{\frac{1169.6}{9} } = 11.39$

$Coefficient~of~Variation = \frac{11.39}{20.8} = 0.55$

y = 6, 2, 29, 17, 26, 17, 17, 2, 3, 5

$Mean = \frac{124}{10} = 12.4$

$Standard~Deviation = \sqrt{\frac{924.4}{9} } = 10.13$

$Coefficient~of~Variation = \frac{10.13}{12.4} = 0.82%$

Since coefficient of variation of x is less compared to y, thus it could be said bonds does not reduce overall risk of an investment portfolio.

6 0

3 years ago

KENNY IS ALLOWED TO WATCH UP TO FIVE HOURS OF TV A WEEK. WRITE AN INEQUALITY THAT SHOWS THE NUMBER OF HOURS KENNY CAN WATCH TV.

Agata [3.3K]

H = hours, so h is less than or equal to 5.

6 0

3 years ago

Read 2 more answers

Am I right or wrong plz answer

Dvinal [7]

Wrong because you need to add the -2 to the 8.... I hope this helps

4 0

4 years ago

Change 3Y - 2X = -6 to the slope-intercept form of the equation of a line.

k0ka [10]

Answer:

y = 2/3x -2

Step-by-step explanation:

The slope intercept form of a line is

y = mx+b where m is the slope and b is the y intercept

3y -2x = -6

Solve for y

Add 2x to each side

3y = 2x-6

Divide by 3

3y/3 = 2x/3 -6/3

y = 2/3x -2

3 0

4 years ago

What is the equation of the linear model in point-slope form that includes the point (-3,1) and has a slope of 3?

vova2212 [387]

$(\stackrel{x_1}{-3}~,~\stackrel{y_1}{1})\ \qquad \qquad \stackrel{slope}{m}\implies 3 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{1}=\stackrel{m}{3}(x-\stackrel{x_1}{(-3)})\implies y-1=3(x+3)$

7 0

2 years ago