Answer:
- <u>Option A. about 100.5ft²</u>
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Explanation:
Since the <em>bases</em> must not be painted, their areas are <em>not included</em> in the calculation.
The <em>surface</em> to paint, of each pillar, is equal to the lateral area of a<em> cylinder </em>with he dimensions given.
The formula for the laeral area of a cylinder is:
Substitute including the conversion factor to convert inches to feet:
Answer:
Step-by-step explanation:
3/4 of total = 45
therefore, 1/4 took bananas
the ones taking bananas are 3 times less than those who took apples.
so we get 45/3 = 15 people picking bananas
Answer:
96
Step-by-step explanation:
144 x 2 = 288
288/3 = 96
Answer:
106
Step-by-step explanation:
Given that:
Mean (m) = 13.5 pounds
Error margin = 0.025
α = 99%
Variation interval = range = 13.3 to 13.7
Standard deviation (σ) estimate from range :
Range / 4
(13.7 - 13.3) /4
= 0.4 / 4
= 0.1
Zcritical at 99% = 2.576
Using the formula :
Sample size (n) = [ (Zcritical * σ) / M. E]^2
n = [(2.576 * 0.1) / 0.025]^2
n = (0.2576 / 0.025)
n = 10.304^2
n = 106.172
n = 107 samples
Answer: 1 hour 35 minutes
assuming both times were p.m. or a.m. and not one of each
Step-by-step explanation:
60 minutes in an hour.
3 hours 25 minutes = 205 minutes
5 hours = 300 minutes
300-205 = 95 minutes
95 minutes = 1 hour (60 minutes) and 35 minutes
