Divide 171 by 3 which equals to 57:1
C is correct, the root here acts as brackets transforming the function 3 units left
Answer:
72
Step-by-step explanation:
1 stamp costs 0.36 cents
Then, 200 post cards will cost 0.36 × 200 = 72
Answer:
Mean = 13 kilometer per second
Standard Deviation = 0.4082 kilometer per second
Step-by-step explanation:
We are given the following data set of rocket speed in kilometer per second in the question:
12.7, 13.4, 12.6, 13.3
Formula:
where are data points, is the mean and n is the number of observations.
Deviations from mean = -0.3, 0.4, -0.4, 0.3
Sum of squares of differences =
0.09 + 0.16 + 0.16 + 0.09 = 0.5
Mean = 13 kilometer per second
Standard Deviation = 0.4082 kilometer per second
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