Random sampling. its where you pick or make a smaple at random
I'm sure there's an easier way of solving it than the way I did, but I'm not sure what it could be. Never dealt with a problem like this before.
Anyway, I just plugged in and tested. Chose random values for a, b, c, and d, which follow the rule 0 < a < b < c < d:
a = 1
b = 2
c = 3
d = 4


Simplify into standard form:



Use the quadratic formula to solve:

For functions in the form of

. So in this case:
a = 1
b = -4
c = 2
Plug them in:

Solve for 'x':




So the answer would be A.
Multiply the diameter by PI which is 3.14 so that means the circumference would be 15.7.
Answer:

Step-by-step explanation:
As x approaches 10 from the right side, h(x) approaches 18.5 but never touches it.