Answer:
45
Step-by-step explanation:
x/3=15
Mutiply each side by 3
x=45
Step-by-step explanation:
Convert quart to cups
if it is less than total cups her punch will not fit and vice versa
Answer:
The magin of error is 0.0552 = 5.52 percentage points.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of , we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of .
The margin of error is:
For this problem, we have that:
99.5% confidence level
So , z is the value of Z that has a pvalue of , so .
M.E:
The magin of error is 0.0552 = 5.52 percentage points.
Answer:
8
Step-by-step explanation:
sin theta = opposite side/ hypotenuse
sin 30 = 4/x
Multiply each side by x
x sin 30 = 4
Divide each side by sin 30
x sin 30 /sin 30 = 4 sin 30
x = 4 /sin 30
We know that sin 30 = 1/2
x = 4 / 1/2
x = 8