All categories

3 years ago

The circumference of circle T is 180 units.

Mathematics

1 answer:

cricket20 [7]3 years ago

5 0

The correct answer to your problem will be B

You might be interested in

Someone please please help please please help me please ASAP ASAP please ASAP thank you so much please help me with my work

Fudgin [204]

Answer:

(-3,2)

Step-by-step explanation:

Coordinates are set up as (x,y) so you would first look at the x value, which is located at the horizontal line, of yellow which is -3 and then the y value, which is located at the vertical line, of yellow which is 2 so you get (-3,2)

5 0

3 years ago

A $59 sweater is on sale for $40. what percent decrease is this?

wariber [46]

Answer:

32.2033898 % decrease

Step-by-step explanation:

To find the percent decrease, take the original amount and subtract the new amount

59-40 = 19

Divide by the original amount

19/59 =.322033898

Change to a percent

32.2033898 % decrease

3 0

4 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

Amy subtracts 342 frm 456 and gets 114. What addition equation can she use to check her answer? Draw a bar diagram to show how t

otez555 [7]

All u would have to do is add 114 to 342 to see if she's correct

4 0

3 years ago

For this graph, mark the statements that are true.

ololo11 [35]

Correct Answer are A and D

5 0

3 years ago