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3 years ago

Hey Brainators ! Here is A Question I have Created for You guys to answer :D

Mathematics

1 answer:

const2013 [10]3 years ago

8 0

Answer:

the answer is b. 33

Step-by-step explanation:

first I did 5x+1=2x+7 and found x=2

then I plugged that back in and got that all the sides equal 11 and 11x3=33

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How to draw a graph your cost c to buy w pounds of walnuts at 6$\lb is represented by c =6w

Triss [41]

Y = 6x put it in a graphic calculator or go to desmos.com

7 0

3 years ago

A science fair poster is very rectangular 3 feet long and 2 feet wide what is the area of the poster in square inches

pantera1 [17]

You want to do base × height to get your answer
3×2 = 6
So the area of the poster is 6 sq in.

If this helps pls mark brainliest pts

8 0

3 years ago

I NEED LOTS OF HELP IF U ANSWER THIS CORRECTLY I WILL GIVE YOU BRAINLYIST PLEASE PLEASE PLEASE ANSWER THIS

muminat

Which question???????????

4 0

3 years ago

Why is it not a system of linear equations?

denis23 [38]

This is only one equation. It is therefore not a system and you can not solve for two different variables y and z unless you have another equation to solve with. It.

8 0

3 years ago

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