P(x) = 6 - x
The function p(x) is linear function y = mx + b, therefore the domain is all real numbers and the range (m = -1 ≠ 0) is all real numbers.
Answer:
b) H0:μ=90, H1:μ≠90
Step-by-step explanation:
The corporation wants to know if the mean number of days is different from the 90 days claimed.
This means that at the null hypothesis, we test if the mean number is the claimed value of 90, and so:

The corporations wants to know if the mean number is different, and thus, at the alternate hypothesis, we test if the mean number is different from 90, that is:

This means that the correct answer is given by option b.
Prime means when a number can't have a factor other than 1
Answer:
Answers is C Cos A+sin B =1