Using addition of variables, it is found that the mean of S is of 73 and the standard deviation is of 8.5.
<h3>What happens to the mean and the standard deviation when two variables are added?</h3>
- The mean is the sum of the means.
- The standard deviation is the square root of the sum of variances.
In this problem, for variables A and B, we have that:
Variable S is the sum of A and B, hence:
The mean of S is of 73 and the standard deviation is of 8.5.
More can be learned about addition of variables at brainly.com/question/26156502
Answer:
1526.04 mm^2
Step-by-step explanation:
The volume of a cylinder is given by
V = pi r^2 h where r is the radius and h is the height
V = 3.14 * (9)^2 *6
=1526.04 mm^2
a = 3, b = 4, and c = 2
a + b = c
3 + 4 = 2
3a + 4b = 2c
<u> -4 -4
</u> <u>3a</u> = <u>-6c
</u> 3 3
a = -2
3a + 4b = 2c
<u>-3 -3
</u> <u>4b</u> = <u>-1c</u>
4 4
<h2>
a = 2c/3 - 4b/3</h2>
Answer:
The price of a game is 
Step-by-step explanation:
Let
x ----> the list price of a game
Remember that
To find out the price of a game that's been discounted 18% off its list price, multiply the list price by the number 0.82
so
