Answer:
to multiply any number by 10, just tag ONE zero on the end. To multiply any number by 100, just tag TWO zeros on the end. To multiply any number by 1,000, just tag THREE zeros on the end. Note especially what happens when the number you multiply already ends in a zero or zeros.
Answer:
0.0274
Step-by-step explanation:
The mean is 
and the standard deviation is 
Calculate
for 
If 
then 
and
Use table for normal distribution probabilities to get that
Answer:
Answer: -7
Step-by-step explanation:
Answer:
56
Step-by-step explanation:
You add 91 and 33 and you get 124. Subtract 180 and 124 to get 56.
First get rid of the last set of () by doing distributive property with the - sign
x^2 + 2x -1 - x^2 + 2x -1
=4x - 2
