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kkurt [141]
3 years ago
13

Please help I am so stuck

Mathematics
1 answer:
o-na [289]3 years ago
3 0
First third and last answer
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If f(x) = -2x^2 + 3 then f(-5) = ??
Sladkaya [172]

F(-5)= -2x^2+3

-5*-5=25

25*-2=-50

F=-50+3

F=-47

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You are purchasing a car for $12,465.00 plus 5.65% sales tax. You make a $1,300.00 down payment and have a fair credit score. If
pochemuha

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21.74

Step-by-step explanation:

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What is sketch to show 6 with exponent of 2
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6^{2} this represents 6 with a power of 2 on the keyboard
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The midpoint between (-4, 4) and (-2, 2)
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Read 2 more answers
Which two functions are inverses of each other?
liraira [26]

Answer:

Option 3 - f(x)= 4x, g(x) = \frac{1}{4}x

Step-by-step explanation:

To find : Which two functions are inverses of each other?

Solution :

Two functions are inverse if f(g(x))=x=g(f(x))

Now, we find one by one

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

f(g(x))=f(-x)=-x\neq x

Not true.

2) f(x)= 2x, g(x) = -\frac{1}{2}x

f(g(x))=f(-\frac{1}{2}x)=2\times(-\frac{1}{2}x)=-x\neq x

Not true.

3) f(x)= 4x, g(x) = \frac{1}{4}x

f(g(x))=f(\frac{1}{4}x)=4\times(\frac{1}{4}x)=x

g(f(x))=f(4x)=\frac{1}{4}\times 4x=x

i.e. f(g(x))=x=g(f(x)) is true.

So, These two functions are inverse of each other.

4) f(x)= -8x, g(x) =8x

f(g(x))=f(8x)=8\times(-8x)=-64x\neq x

Not true.

Therefore, Option 3 is correct.

6 0
3 years ago
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