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Elza [17]
3 years ago
5

F(x)= 9-x^2, x ≥ 0. f^-1(x)=??

Mathematics
1 answer:
julia-pushkina [17]3 years ago
7 0
y=9-x^{2},\ x\ge0

Reverse x and y:
x=9-y^{2},\ y\ge0
Solve for y:
x=9-y^{2}
\rightarrow y^{2}=9-x
\rightarrow y=\sqrt{9-x} since y\ge0
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Answer: sorry the answer is not clear.

Step-by-step explanation:

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2 years ago
he price of a pair of shoes increases from $68 to $77. What is the percent increase to the nearest percent?
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Answer:

an increase of 12%

Step-by-step explanation:

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Tip:

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Given the functions f(x) = 2x -1 and g(x) =
Novosadov [1.4K]

Answer:

Please check the explanation.

Step-by-step explanation:

Given

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  • g(x) =  2 - x

a)

f(x) + g(x) = (2x - 1) + (2 - x)

                = 2x -1 + 2 - x

                = x + 1

b)

f(x) - g(x) = (2x - 1) - (2 - x)

              = 2x - 1 - 2 + x

               = 3x - 3

c)

g(-5) - f(-5)

Putting x = -5 in g(x) = 2 - x

g(x) = 2 - x

g(-5) = 2 - (-5) = 2+5 = 7

Putting x = -5 in f(x) = 2x - 1

f(x) = 2x - 1

f(-5) = 2(-5) - 1

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Thus,

g(-5) - f(-5) = 7 - (-11) = 7+11 = 18

d)

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e)

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3 years ago
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egoroff_w [7]

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Step-by-step explanation:

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2 years ago
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