Answer:
its B
Step-by-step explanation: just took test
The answer is 4 hope this helps kindergartner
The formula is
time = (Worker 1 * Worker 2) / (Worker 1 + Worker 2)
time = (18 * 20) / (18 + 20)
time = 360 / 38
time =
<span>
<span>
<span>
9.4736842105
</span>
</span>
</span>
minutes
So, the answer is "a. 9.5 minutes".
Source
http://www.1728.org/work.htm
9514 1404 393
Answer:
4,811.49 m³
Step-by-step explanation:
The volume of a cone is computed using the formula ...
V = (1/3)πr²h
Using the given numbers, we find the volume to be ...
V = (1/3)π(15.35 m)²(19.5 m) = 1531.54625π m³ ≈ 4,811.49 m³
_____
<em>Additional comment</em>
If you inappropriately use 3.14 for π, you get a volume of 4809.06 m³. That 3-digit value is inappropriate because a value accurate to 6 significant figures or more is needed to support an answer accurate to 6 significant figures.
