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Morgarella [4.7K]
3 years ago
13

PLS HELP ITS TIMED!!!

Mathematics
2 answers:
podryga [215]3 years ago
8 0

Answer:

B

is the correct answer dear

Jlenok [28]3 years ago
6 0

Answer:

it would be A

Step-by-step explanation:

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Solve for X. Need to show the work -<br><br> Need help please.
Strike441 [17]

Answer:

x = 4

Step-by-step explanation:

12/15=28/a which is a=35

then 35+28=63

14x+7=63 and x would be 4

7 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
The volume of a rectangular prism is 2,100 cm cubed , with length 25 cm and width 12 cm. What is the height, in cm?
BabaBlast [244]
This is easy the answer is 7
5 0
3 years ago
What is the solution of the equation (4x + 3)^2 = 18?
iren [92.7K]

Answer:

x=6

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is the ratio of 18-29
ANEK [815]
62.069% is what i thank it is
6 0
3 years ago
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