15-09-2016
Mathematics

contestada

If f(x) = 2 ^{2} - x, find f(-3).

Respuesta :

dharazzz dharazzz

15-09-2016

fx=2x-x
f=2x/x-x
f=2-x
-3*f=-3f
-3f=-3*(2-x)
-3f=-6+3x

Answer Link

15-09-2016

Plug in -3 for x. So 2^2 - -3=4+3. The answer is 7. f(-3)=7.

Answer Link

Otras preguntas

A cat with a mass of 5 kg sits on a branch that is 26 m off the ground. What is its gravitational potential energy? The acceleration of gravity is 9.8 m/s2 A. 8

(Plz hurry) Given that cosθ=817 and sinθ=−1517 . What is the value of tanθ? 815 −815 158 −158

This month the company reported an increase in profit of 25%. If the company made $45,000 last month, how much did they make this month? A. $5,400 B. $5,625 C.

some help a homie out in math

The primary difference between the Virginia Plan and the New Jersey Plan was __________. A. military funding B. a standard national currency C. state representa

i need help please!!!

simplify this algebraic expression.

Which of the following statements best explainswhy producers conduct market research?O A. Anticipating trends makes it easier todistribute goods and services.O

I NEED HELP PLEASE, THANKS! :) The electric field around a positive charge is shown in the diagram. Describe the nature of these lines.

Simplify (7^5)^3 please