3,240 ......................
72,429 rounded to the nearest ten-thousands is 70,000.
9514 1404 393
Answer:
h(g(x)) = (1/5)x² +4/5
Step-by-step explanation:

This question is asking "Where does cosine equal

?"
Based on our unit circle values and the domain of the cos^{-1} function, we see that at 30 degrees, or

, cosine is equal to

.
Find slope (y2-y1)/(x2-x1)
(4-5)/(3-0) = -1/3
Y = -1/3x + b
5 = -1/3(0) + b, b = 5
Equation: y = -1/3x + 5