FORMULA:
- Volume of cylinder = πr²h
ANSWER:
Volume of cylindrical block = 3.14 × (5.7)² × 10.7
Answer: see below
Step-by-step explanation:
The charges is always at least $80 just for the plumber to show up. The, it increases by $60/hour.
We represent cost, c in dollars, as below.
part A --> c = 80 + 60h
where h is the number of hours.
For 3 hours work, c = 80 + 60(3) = 80 + 180 = $260
part B --> $260
I hope this helps.
Answer:
21, 144, 12
Step-by-step explanation:
Given that a sample of 30 distance scores measured in yards has a mean of 7, a variance of 16, and a standard deviation of 4.
Let X be the distance in yard.
i.e. each entry of x is multiplied by 3.
New mean variance std devition would be
E(3x) = 
Var (3x) = 
Std dev (3x) = 
Thus we find mean and std devition get multiplied by 3, variance is multiplied by 9