2 years ago

If f(x) =x^2 -2 and g(x) = 4f(x)-1 then what is the value of g(-3)?

Mathematics

2 answers:

In-s [12.5K]2 years ago

8 0

Answer:

I believe that g(-3) = -9. I could be wrong though.

Tell me if I'm correct and have a good day!!!

lakkis [162]2 years ago

3 0

g(x) = 4f(x)-1

g(x) = 4(x^2-2) -1

g(3) = 4(3^2-2) -1

= 4(9-2) -1

=4*7 -1

= 28-1

=27

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The diameter of the attic is 18ft and its height is 18ft. What's is the volume of the space in the attic

Svet_ta [14]

I attached an image with the complete question.

Answer:
volume of attic = 1526.04 ft³

Explanation:
Volume of cone can be calculated using the following rule:
Volume = $\frac{1}{3}$ * area of base * height
Volume = $\frac{1}{3}$ * π * radius² * height
We are given that:
π = 3.14
radius = 18/2 = 9 ft
height = 18 ft

Substitute in the equation to get the volume as follows:
Volume = $\frac{1}{3}$ * 3.14 * (9)^2 * (18) = 1526.04 ft³

Hope this helps :)