Answer:
the first option
Step-by-step explanation:
local max is the highest point which is (-1,1.17)
and local min is the lowest point which is (2,-3.33)
When it comes to fractions yes you do. But to make it easier just multiply the denominators and that should give u a common denominator, they don't always have to be least common.
Answer:
350000
Step-by-step explanation:
I'm not sure
but I got this one
Answer:
30 men
Step-by-step explanation:
In order to be sure that the sample mean does differ from the population mean by more than 0.90, the sample size (n) that should be used is given by:

Where 'Z' , for a 95% probability is 1.960, 's' is the standard deviation of 2.5 inches:

Rounding up to the nearest whole number, the sample size should be at least 30 men.
If I’m correct it should be 6+4i good luck