Answer:
2770.9 in³
Step-by-step explanation:
A cylinder has a base radius of 7in and a height of 18in. What is its volume in cubic inch to the nearest tenths place?
The formula for the volume of a cylinder is given as:
πr²h
r = radius = 7 in
h = height = 18 in
Hence:
Volume of the cylinder = π × 7² × 18
= 2770.88472 in³
Approximately to the nearest tenth = 2770.9 in³
Answer:
Step-by-step explanation:
Answer:
12 nickels and 9 dimes
Step-by-step explanation:
1/ We have: n + d = 21 <=> d = 21 - n or opposite (n = 21 - d)
2/ We have: 0.05n + 0.10d = 1.50 and then we will put 1/ into 2/
=> 0.05n + 0.10(21 - n) = 1.50
=> 0.05n + 2.1 - 0.1n = 1.5
=> -0.05n = -0.6
=> n = 12
Nevertheless, d = 21 - n = 21 - 12 = 9
Answer: 9460000000000
10^12 means that you have to move the decimal place to the right 12 times.