Answer: F
Step-by-step explanation:
Answer:
b.a rotation 270 clockwise
Step-by-step explanation:
Vcylinder = πr2h
After plugging everything in you should get (3.14)(3.9)(30) this simplifies should get you 367.38m^3. Hope this helps!
Answer:
C. 8
Explanation:
One way to solve this is to find 30% of each class, 28 and 24.
30% of 28:
28 • 0.30 = 8.4
30% of 24:
24 • 0.30 = 7.2
You can then find the average of these two numbers.
8.4 + 7.2 = 15.6
15.6 ➗ 2 = 7.8
7.8 rounds up to 8
Another way to solve is to first find the average number of people in each class.
28 + 24 = 52
52 ➗ 2 = 26
You can then find 30% of this number.
26 • 0.30 = 7.8
7.8 rounds up to 8
Answer:
And the best answer would be:
b. 0.074.
Step-by-step explanation:
For this case we have the following info given:
represent the number of people who answer yes for the question
the sample size selected
the proportion estimated of people who answer yes
The margin of error is given by:
The confidence level is 90% and the significance would be 
and the critical value would be:
And replacing we got:
And the best answer would be:
b. 0.074.
