Answer: The height of the cone is

Step-by-step explanation:
<u>Step 1:-</u>
using formula Volume of the cone given base and height of the cone is 
Given Volume of the cone is V = 30 ft^3
Given base of the cone is B = 8 ft^2
<u>Step 2</u>:-

substituting values, we get

cross multiplication, we get

simplification we get

<u>Final answer</u> :- The height of the cone is

Answer:
C. Integer
Step-by-step explanation: Since the square root of 144 could either be -12 or 12, so it is an integer.
Fun. I prefer Oxymetazoline.
For the control group we have a headache probability of
c = 368/1671 = .220
For the experimental group we have a headache probability of
e = 494/2013 = .245
The observed difference is
d = e - c = .025
The variance of the difference is
s² = c(1-c)/n₁ + e(1-e)/n₂
so the standard deviation is

We get a t statistic on the difference of
t = d/s = .025/.0139 = 1.79
We're interested in the one sided test, P(d > 0). We have enough dfs to assume normality. We look up in the standard normal table
P(z < 1.79) = .96327
so
p = P(z > 1.79) = 1 - .96327 = 0.037 = 3.7%
Answer: That's less that 10% so we have evidence to conclude that headaches are significantly greater in the experimental group.
Answer:
5
Step-by-step explanation:
Change 6 1/4 into an improper fraction
6 1/4 = (4*6 +1)/4 = 25/4
Multiply by the fraction
25/4 * 4/5
5
There are 5 gallons left
2L + 2W = perimeter
dividing both sides by 2
L + W = (perimeter / 2)
Length = (perimeter / 2) -Width
Width = (perimeter / 2) -Length