Answer:

Step-by-step explanation:
See attachment 1. This is the formula to use.
There are two numbers, so n=2. Plugging them into the formula, you get
![\sqrt[2]{6*\frac{1}{2}} \\](https://tex.z-dn.net/?f=%5Csqrt%5B2%5D%7B6%2A%5Cfrac%7B1%7D%7B2%7D%7D%20%5C%5C)
Now, putting a 2 in front just means we're finding the square root, so I'll get rid of it. Then, just do the calculation.

Answer:
B
Step-by-step explanation:
2.97 divided by 11= 0.27
2.88 divided by 12= 0.24
3.68 divided by 14= 0.26
3.75 divided by 15= 0.25
10% means 10 out of 100.
So 10% of 120=

So total number of books now = 120+12 =
132
Cylinder formula
3.14 x radius square x the height
5(3.14) x 2
=10(3.14)
Answer:
The expected value is $4.35
Step-by-step explanation:
For us to calculate the expected value , we need to multiply each of the given probability by the individual payout value and add
So we have it as;
0.35(1) + 2(0.2) + 5(0.1) + 8(0.2) + 10(0.15)
= 0.35 + 0.4 + 0.5 + 1.6 + 1.5
= $4.35