4 years ago

Can anyone help with this domain and range? Thank you!

Mathematics

1 answer:

nydimaria [60]4 years ago

5 0

Answer:

both are all real numbers. hope i helped!!

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Answer:

$\Large \boxed{\sf \ \ f^{-1}(x)=x^2-3 \ \ }$

Step-by-step explanation:

Hello,

$\text{For }x+3\geq 0\\\\f(x)=\sqrt{x+3}\\\\x=(fof^{-1})(x)=f(f^{-1}(x))=\sqrt{f^{-1}(x)+3}\\\\\text{*** take the square ***}\\\\f^{-1}(x)+3=x^2\\\\\text{*** subtract 3 from both sides ***}\\\\\large \boxed{\sf \ \ f^{-1}(x)=x^2-3 \ \ }\\$

Hope this helps.

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A cube has a surface area of 64 ft². Hedy creates a reduction of this cube using a scale factor of 0.5. What is the surface area

Olin [163]

64 ft² X <span>0.5=32ft²

</span>What is the surface area of the reduction? 3<span>2ft²</span>

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