Evaluate (f − g)(2) for f(x) = 2x2 − 18 and g(x) = –3x − 7.

For this case we have the following functions:

We must find:

By definition, we have to:

So:

Then, we evaluate in x = 2:

answer:

c. the third graph

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x