What is the rate of change between the interval of x = 0 and x =  pi / 2 (2 points)

a) 2/pi

b) pi/2

c) pi/4

d) 4/pi

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

we can't see all full 4 options, but if this is the full option, than the very left one is correct:

-2/5 * -3 3/4

remake the question, adding a picture of all the question, or write down the full left and right answers.