3. What is f(-3) if f(x) = 2x + 11 + 5?
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0-10

Step-by-step explanation:

f(x) = 2x + 11

f(-3) = 2(-3) + 11

= - 6 + 11 = 5

10

Step-by-step explanation:

x= 2(-3)+11+5

PEMDAS

-6+11+5=10

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation:

europa2433

europa2433

step-by-step explanation: