What is the circumference of this circle? Use 3.14 for a.

Mr. Franklin asked each of his 30 students to

denpristay [2]

Answer:

B) 14

Step-by-step explanation:

1/5 + 1/3 = x (don't worry, it's not algebra, I'm just using x as an example)

The common denominator is 15, so you multiply 5 by 3 = 15 and 1 by 3 = 3,

3/15 = 1/5

Then, multiply 3 by 5 = 15 and then 1 by 5 = 5, so it's

5/15 = 1/3

5/15 + 3/15 = 8/15 and then multiply 15 by 2 = 30 (number of students) and because you multiplied 15 by 2, you also multiply 8 by 2 = 16

So it is now 16/30, so you do 30-16 which is 14.

14 students chose Station M (doesn't sound like a good station).

Whoo! Let's go! (I'll stop being cringy now).

6 0

3 years ago

Read 2 more answers

Below are the jersey numbers of 11 players randomly selected from a football team. Find the range, variance, and standard deviat

Aleksandr-060686 [28]

Answer:

Range = 71

Variance = 546.0

Standard Deviation = 23.4

Option A) Jersey numbers are nominal data that are just replacements for names, so the resulting statistics are meaningless.

Step-by-step explanation:

We are given the following data set in the question:

33, 29, 97, 56, 26, 78, 83, 74, 65, 47, 58

Formula:

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

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

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

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

$Mean =\displaystyle\frac{646}{11} = 58.7$

Sum of squares of differences = 5460.18

$\text{Variance} = \frac{5460.18}{11} = 546.0$

$S.D = \sqrt{\frac{5460.18}{10}} = 23.4$

Sorted Data Set: 26, 29, 33, 47, 56, 58, 65, 74, 78, 83, 97

Range = Maximum - Minimum

Range = 97 - 26 = 71

Based on the values, we can say that

Option A) Jersey numbers are nominal data that are just replacements for names, so the resulting statistics are meaningless.

6 0

4 years ago

Solve for x. -0.65 + 0.45x = 5.4

FinnZ [79.3K]

Answer:

x = 13.444 ... (repeating decimal) or;

x = 13 4/9

Step-by-step explanation:

-0.65 + 0.45x = 5.4

First we will add 0.65 to each 'side' of the equation.

0.65 + (-0.65) + 0.45x = 0.65 + 5.4

0.65 + (-0.65) = 0

0.65 + 5.4 = 6.05

Input the numbers, and now the equation looks like this:

0 + 0.45x = 6.05

Remove the zero:

0.45x = 6.05

Divide each 'side' by 0.45.

0.45x ÷ 0.45 = 6.05 ÷ 0.45

0.45x ÷ 0.45 = 1x = x

6.05 ÷ 0.45 = 13.444 ... repeating decimal

Input the numbers, and now the equation looks like this:

x = 13.444 ... repeating decimal

We can also write this as:

x = 13 4/9 in fraction form

3 0

3 years ago

What is the measure of the missing angle

Likurg_2 [28]

Answer:

45 degrees xxxxxxxxxx

Step-by-step explanation:

simple geo

3 0

3 years ago

5/12 x 4/5????????????

riadik2000 [5.3K]

Answer:

1/3

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

What is the circumference of this circle? Use 3.14 for a.​

What is the circumference of this circle? Use 3.14 for a.