Here u go. It says my answer has to be at least 20 words long so I'm just typing for no reason. Lol.
Answer:
c. 2b - 3
Step-by-step explanation:
Simplify the following:
-2 b + 4 + 4 b - 7
Grouping like terms, -2 b + 4 + 4 b - 7 = (4 b - 2 b) + (4 - 7):
(4 b - 2 b) + (4 - 7)
4 b - 2 b = 2 b:
2 b + (4 - 7)
4 - 7 = -3:
Answer: 2 b + -3
You end up getting x^2 when you finish simplifying the quadratic equation, so you simply make a positive parabola with the vertex positioned at the origin.
Howard is about 193.9 yards from the top of the reservoir.
This is a trigonometry problem. If you draw a picture of the situation, you will see that you have an adjacent side and need to know the hypotenuse.
That makes it a cosine problem:
cos(64) = 85/x
x = 85/cos(64)
x = 193.9
He is about 193.9 yards from the top of the reservoir.
