The mean of the data is 11
now we find the difference between the mean and each number
1, 2, 3, 0.5, 0.25, 1.25, 1.
now we square the numbers
1, 4, 9, 0.25, 0.0625, 1.
now we find the mean of the new numbers
which is 2.1875
2.1875 is your standard deviation.
Answer:
175 Miles has to be driven to do the plans cost the same.
Step-by-step explanation:
Assume The Chau Drive Y miles .
We Have Given Two Plans ,
- First Plan = 50$ + 0.19$ × Y
- Second Plan = 57$ + 0.15$ × Y
Now,Put First Plan=Second Plan (When Both Plans Cost The Same)
50$ + 0.19$ × Y = 57$ + 0.15$ × Y
0.04$ × Y = 7 ⇔ Y = 175 Miles
Answer:
Step-by-step explanation:
(9^2)^(1/3) = 9^(2 * 1/3) = 9^(2/3)
Answer: Option A: 14t + 4s
Step-by-step explanation:
To find the perimeter of a shape, add up all of its side lengths. We know that the length of the rectangle is (s + 2t), and its width measures (s + 5t).
To find the perimeter, multiply the width by 2 and the length by 2 and add those expressions:
P (perimeter) = 2(s + 2t) + 2(s+5t)
P = 2s + 4t + 2s + 10t
P = 4s + 14t or 14t + 4s
Hope this helps.