Answer:

Step-by-step explanation:
step 1
Find the lateral surface of the cylinder (hot water tank)
The lateral area is given by the formula

we have

substitute


step 2
Find the volume of fiberglass composite needed
Multiply the lateral area by the thick

-----> exact value
assume


Answer:
helen works 16 hours
Step-by-step explanation:
caroline = 3 which is 24 hours
24/3 = 8
1 = 8 hours
8 hours x 2 = 16 hours
Answer:
x=40
Step-by-step explanation:
Step-by-step explanation:
Mean =sum of values /number of values
total sum ↪️ 6+4+9+6+7+10+7
number of values is 7
= 49/7
<h2> =
7 is themean</h2>