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algol [13]
3 years ago
15

If f(x) = - x + 4 and g(x) = x ^ 2 - 5 , then f(g(-2))=?

Mathematics
1 answer:
kkurt [141]3 years ago
5 0

Answer:

Step-by-step explanation:

using your f(x) I want to show you how to plug in different things itnot he function.

f(x) = -x + 4

f(1) = -1 + 4 = 3

f(2) = -2 + 4 = 2

f(m) = -m + 4

f(abc) = -(abc) + 4

f(h(x)) = -h(x) + 4

Does that help?  what if you replaced h(x) with g(x)?  Of course you already have that x so you could make it a little simpler as well.  Let me know if you don't quite get it.

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Question 1
Ilia_Sergeevich [38]

We will see that the perimeter of the rectangle is exactly 390 ft, so the statement is true.

<h3>Is the fence enough?</h3>

For a rectangle of length L and width W, the perimeter is given by:

P = 2*(L + W).

In this case, we know that:

L = 120 ft

W = 75 ft

Replacing that on the perimeter equation we get:

P = 2*(120 ft + 75  ft) = 390 ft

So the perimeter is exactly 390 ft, meaning that to put a fence around the parking lot the company will need at least 390 ft of fence.

So the statement is correct.

If you want to learn more about perimeters, you can read:

brainly.com/question/24571594

4 0
2 years ago
Slope intercept (-1,4) and (0,2)
Arlecino [84]

Answer:

-2 or -2/1

Step-by-step explanation:

Take these two points and just do rise over run.

4 0
3 years ago
Select ALL the correct answers.
DaniilM [7]
Be:
Number of hours: n

<span>The cost of renting a bike for the first hour is $7:
n=1→f(n)=f(1)=$7

</span>He is charged $2.50 for every additional hour of renting the bike:
f(n)=f(n-1)+2.50, for <span>n ≥ 2
</span>
f(1)=7; f(n)=f(n-1)+2.50, for <span>n ≥ 2 (sixth option)
</span>
f(n)=f(1)+2.50(n-1)
f(n)=7+2.50(n-1)
f(n)=7+2.50n-2.50
f(n)=2.50n+4.50 (fifth option)

Answers:
Fifth option: f(n)=2.50n+4.50, and
Sixth option: f(1)=7; f(n)=f(n-1)+2.50, for <span>n ≥ 2</span>
7 0
3 years ago
Lana has a collection of 92 stickers that she wants to put into an album. Each page holds 6 stickers. How many pages will she ne
Margarita [4]
All you have to do is divide 92 by 6 and you get your answer. The remainder is the spaces she'll have left
8 0
3 years ago
Read 2 more answers
Factor the polynomial by its greatest common monomial factor 20y^6-15y^4+40y^2
stepladder [879]

Answer:

5y^2(4y^4 - 3y^2 +8)

Step-by-step explanation:

20y^6 - 15y^4 + 40y^2

5y^2(4y^4 - 3y^2 +8)

7 0
3 years ago
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