3 years ago

Given that f(x) = x² + 5x, evaluate f(-2). -6 -14 7

1 answer:

6 0

F(x) = x^2 + 5x.......evaluate f(-2).....so sub in -2 everywhere there is an x

f(-2) = -2^2 + 5(-2)
f(-2) = 4 - 10
f(-2) = -6 <==

You might be interested in

Help help help help help due tmr

Murrr4er [49]

Answer:

$17 and 2 hours

$85 and 10 hours

$170 and 20 hours

3 0

2 years ago

An airplane travels at 150 miles per hour. The total distance traveled is 637.5 miles. Which equation should be solved to determ

OverLord2011 [107]

The distance (d) traveled by the airplane is the product of multiplying the speed (s) and the trip took (h). The equation is shown below,
d = s x h
Substitute the known values to the equation,
637.5 miles = (150 mile/ hour) x h
Manipulating the equation,
h = (637.5 miles) / (150 mile/ hr)
h is equal to 4.25 hours.

8 0

3 years ago

Prove that

Dovator [93]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identities

secx = $\frac{1}{cosx}$ , cosecx = $\frac{1}{sinx}$