Suppose we wish to test a hypothesis about the differences in true means based on the condition that both samples n1 and n2 are > 30 and are randomly and independently drawn from populations with known variances. Under what condition is the null hypothesis rejected?

Which function is odd check all that apply a. y=sin x b. y=csc x c. y=cot x d. y=sec x

On #16 : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.

Desmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? \ 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2x