Let r denote radius.
To find circumference we use

To find area we use

Hope this helps.
Answer:
A
Step-by-step explanation:
Answer:
So I', just guessing you are solving for why.
y=5+2x
Step-by-step explanation:
Basically you move all the numbers that don't have why on to the other side of the equation and vice versa if you are solving for x.
Answer:
I think its -12. If you apply y2-y1/ x2-x1 to the equation.
Answer:
c. 55.4 ft/s
Step-by-step explanation:
Speed of the object is represented by the function:

where x represents the number of feet the object has fallen. We have to find the speed of the object after it has fallen 48 feet. This means we have to find f(x) for x = 48. Substituting x = 48 in above equation we get:

Thus, rounded to nearest tenth, the speed of the object after it has fallen 48 feet would be 55.4 ft/s