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Mice21 [21]
3 years ago
12

What is the inverse of the function f(x) = x +3?

Mathematics
2 answers:
skelet666 [1.2K]3 years ago
7 0
F(x) = x + 3
y = x + 3
x = y - 3

Inverse is h(x) = x - 3
NARA [144]3 years ago
6 0

Answer:

Option C is correct that is h(x)=x-3

Step-by-step explanation:

We have been given a function:

f(x)=x=3

\text{let y}=f(x)

y=x+3

x=y-3

Hence,f^{-1}y=y-3

Therefore, f^{-1}x=x-3

Hence, Option C is correct that is h(x)=x-3

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Answer:

p=18x+4

a=20x^2+17x-63

a=1350

Step-by-step explanation:

Given:

l=5x-7

w=4x+9

Required:

Area of the rectangle=?

Perimeter of the rectangle=?

If x = 9 inches what is the area of the shape=?

Formula:

a=l*w

p=2(l+w)

Solution:

p=2(l+w)

p=2(5x-7)+2(4x+9)

p=10x-14+8x+18

p=10x+8x+18-14

p=18x+4

a=l*w

a=(5x-7)(4x+9)

a=20x^2+45x-28x-63

a=20x^2+17x-63

Area of the shape if x=9in

a=20x^2+17x-63

a=20(81)+17(9)-63

a=1620+153-63

a=1413-63

a=1350

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