Answer:
The answer is 4 + √15 .
Step-by-step explanation:
You have to get rid of surds in the denorminator by multiplying it with the opposite sign :







Answer:
$200
Step-by-step explanation:
Amanda Beverly
9 : 3
difference between Amanda and Beverly = 9 - 3 = 6 portions.
∴ value of 6 portions = $60
value of 1 portion = $ 60 / 6
= $10
Total no. of portions = 8 + 9 + 3 = 20
Total sum of money to be shared = value of 1 portion x Total no. of portions
= $10 x 20
= <u>$200</u>
B) (16 + 20)a - 18b
16a and 20a are both positive and 18b is the only negative it’s easier to add the positive with each other then the negative and a positive then add other positive
Answer:
50 1/3
Step-by-step explanation:
Answer:
653.45 cm^2
Step-by-step explanation:
The volume of a cylinder can be found using:
v=pi r^2 h
We know the radius is 4, and the height is 13, so we can substitute them in
v=pi (4^2)(13)
v=pi (16)(13)
v=pi 208
v=653.451272
Rounded to the nearest hundredth
v=653.45
So the volume is 653.45 cm^3