URGENT PLEASE HELP Consider function f

f(x)=1/2sin(2x)

What is the amplitude of this function?

A. π/4

B. π/2

C. 1/2

D. 1

From the beginning of the day the temperature rose 15 degrees so that by 4 pm it was 87 degrees. what was the temperature at the start of the day

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.

The two cones below are similar. what is the height of the smaller cone?