NEED HELP URGENT. PLEASE

f(-3) = -18

Step-by-step explanation:

f(-3) = 2(-3)^3+4(-3)^2

When you are given a number for the (x) in f(x), that number is going to replace all the current xs in the equasion.

2(-3)^3 = -54

4(-3)^2 = 36

Then just add them together

f(x) = -54 + 36 = - 18

+25 = x

step-by-step explanation:

here x is the hypotenuse of a right triangle whose legs are 7 and 24.   by the pythagorean theorem, 7² + 24² must equal x²:

x² = 49 + 576 = 625.   thus, x = +√625 = +25 = x

step-by-step explanation:

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