A circle's radius increases at a rate of 0.05 mm/s. If the radius is 125 mm, how fast is the area of the circle changing?

In a circle, a 45° sector has an area of 32π cm2. what is the radius of this circle? 32 cm 12 cm 16 cm 8 cm

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25

Why is causation so much more difficult to prove than correlation?