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3 years ago

Neiwiendnjcisnwbdjxisjbshdixjsnshdixjnsbskxknxx

Mathematics

1 answer:

strojnjashka [21]3 years ago

4 0

They do be sending aliens to Brainly doe

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please help! functions and relations. f(x)= square root of x-4. find the inverse of f(x) and it’s domain.

likoan [24]

ANSWER:

$\:D.\text{ }f^{-1}\left(x\right)=\left(x+4\right)^2;x\ge-4$

STEP-BY-STEP EXPLANATION:

We have the following equation:

$f(x)=\sqrt{x}-4$

The inverse is the following (we calculate it by replacing f(x) by x and x by f(x)):

$\begin{gathered} x=\sqrt{f^{-1}(x)}-4 \\ \\ \sqrt{f^{-1}(x)}=x+4 \\ \\ f^{-1}(x)=(x+4)^2 \end{gathered}$

The domain would be the range of the original equation, and it would be the range of values that f(x) could take, which was from -4 to positive infinity, that is, f(x) ≥ -4.

Therefore, the domain is x ≥ -4.

So the correct answer is D.

$\:f^{-1}\left(x\right)=\left(x+4\right)^2;x\ge -4$

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1 year ago

A _______________________ is a comparison of two measurements in which the denominator has a value of one unit.

Galina-37 [17]

I think the answer is unit rate.

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4 years ago

Factorising quadratics 2nd page

mihalych1998 [28]

A^2-b^2=(a+b)(a-b)

1: x^2-4=(x+2)(x-2)
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3 years ago

Simplify ( -12) x ( 13) x (-15) Please give explanation fast please

kherson [118]

Answer:

2340

Step-by-step explanation:

(-12)×(13)×(-15)

=(-156)×(-15)[ (+) × (-) = (-)]

=2340[(-) × (-) = (+)]

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Step-by-step explanation:

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