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

cells do need food. in a process known as cellular respiration, cells convert biochemical energy (oxygen as food) from nutrients into adenosine triphosphate (atp), and then release waste products.

hope this .. : d

i am sure it will be 90 degrees.

step-by-step explanation:

b

step-by-step explanation:

answer: it is 8

step-by-step explanation:

you know why its 8