Select the functions that have identical graphs. 1) y=cos x
2) y= -sin(x-pi)
3) y= cos(x- pi/2

Select best answer
A. 1,2, and 3
B. 1 and 3
C. 2 and 3
D. 1 and 2

How many of the 250 grandparents in the population would you expect to prefer online shopping with merchant a? merchant a: 4 merchant b: 6 merchant c: 2 merchant d: 3 other: 5 none: 5 answer choices: a.about 4 b.about 8 c.about 40 d.about 21

What’s -11-33k and factor each expression completely

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12