Which trigonometric function is equivalent to f (x) = sinx?

f (x) = cos (x-3pi/2)

f (x) = cos (x-pi/2)

f (x) = cos (-x-pi/2) < - - i think this one, not sure

f (x) = cos (x+pi)

3x2 - 12x - 36 factor the algebraic expression

The teacher assigns homework after of the lessons. A) unlikely B) likely C) certain D) equally likely

Tom had 50 baseball cards. he kept 10 for himself and shared the rest equally among his 8 friends. how many baseball cards did each friend get?

Angel entered a triathlon (a three part race). He ran 10 miles, rode his bike 30 miles, and swam 1 mile. How far did he go altogether 40 miles 123 miles 41 miles 11 miles

What is the unit price for a pound of chicken if 1.5 pounds cost $3.75? Label your answer is dollars per pound.

What is the difference between 128.04 and 8.287?

You need to buy edging to put around a flowerbed. If the flowerbed is 13 feet wide, how much do you need? A) 20.4ft B) 39ft c) 40.8ft D) 132.7 ft

What do 10n represent in p (n) = 10n-1200

A container holds 21 spoons and 27 forks. What is the ratio of spoons to the total number of utensils in the container? A. 7 to 9 B. 7 to 16 C. 9 to 7 D. 16 to 9

Sridhar has garden in the shape of square the area of garden is 576 sq m around the outside of the garden he built path of 3 m wide what will be the area of the area of the garden including the path?