The answer is 68 hope this helps
Answer:
She will need more because that's not enough
Step-by-step explanation:
Answer:
approximately 2 cans
Step-by-step explanation:
total surface area of cylinder with one circular surface plus surface area of a funnel
(206.25+63.25) pie squared feets
270pie squared feets
number of cans = total surface area of figure divided by area covered per can
n= 270pie squared feets ÷400 squared feets
n= 2.121 cans
approximately 2 cans of paint
Cos 60 = x / 8
x = 8 cos 60 = 8 *0.5 = 4
Its A
The sample size can be calculated using the formula:
n = p (1-p) (Zc / m)^2
where:
p = proportion of students who received lunches= 0.5
Zc = taken from standard tables at 99% CI = 2.575
<span>m = margin of error = 0.07</span>
Substituting known values:
n = 0.5 (1-0.5) (2.575/0.07)^2
n = 338.3
<span>n =
339 samples</span>