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4 years ago

6+5w-9f-3 use w=3 and f=4

1 answer:

7 0

6+5w-9f-3
Substitute the variables for numbers
6+5(3)-9(4)-3
Multiply 5 by 3 and -9 by 4
6+15-36-3
Combine like terms
Final Answer: -18

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Given the function f(x) = -2c+cx-x^2, and f^-1(5) = -1, find c

AnnZ [28]

Answer:

$c=-2$

Step-by-step explanation:

We are given the function:

$f(x) = -2c + cx - x^2$

And that:

$\displaystyle f^{-1} (5) = -1$

And we want to determine the value of c.

Recall that by definition of inverse functions:

$\displaystyle \text{If } f(a) = b, \text{ then } f^{-1}(b) = a$

So, since f⁻¹(5) = -1, then f(-1) = 5.

Substitute:

$f(-1) = 5 = -2c + c(-1) - (-1)^2$

Simplify:

$5 = -2c - c - (1)$

Combine like terms:

$6 = -3c$

And divide. Hence:

$c = -2$

In conclusion, the value of c is -2.

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3 years ago

For a class, Mrs. Hawk brought

Mekhanik [1.2K]

Answer:

Step-by-step explanation:

7x2=14

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3 years ago

Read 2 more answers

Please help me with this. Attention all smart people!!!

olya-2409 [2.1K]

Answer: CPCTC

Step-by-step explanation:

because in the step before that it was proved that the triangles were congruent and CPCTC is used after they are proved congruent.

By CPCT [Corresponding Part of congruent Triangle]

<h=<j

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4 years ago

What is the length of the missing side?

iren [92.7K]

I think its 8 :) please correct me!

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Answer:

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Step-by-step explanation:

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4 years ago