3 years ago

Which function has an inverse that is a function? A, B, C, or D??

Mathematics

1 answer:

OlgaM077 [116]3 years ago

4 0

Answer:

Step-by-step explanation:

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X²+8x-84=0 <br><br>Formúla General

Brums [2.3K]

Answer:

$x_{1} =-14\\\\x_{2} =6$

Step-by-step explanation:

$x^{2} +8x-84=0\\\\x=\dfrac{-b \pm \sqrt{b^{2}-4ac } }{2a} \\\\a=1; \: \: b=8; \: \: c=-84\\\\x=\dfrac{-8 \pm \sqrt{8^{2}-4 \cdot 1 \cdot (-84) } }{2 \cdot 1}=\dfrac{-8 \pm \sqrt{400 } }{2}=\dfrac{-8 \pm20}{2} =-4 \pm 10\\\\x_{1} =-14\\\\x_{2} =6$

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3 years ago

What is the measure of PRQ?

natima [27]

Answer:

the answer is 172

Step-by-step explanation:

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3 years ago

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slava [35]

Answer:

Cancel the common factor of c^ 4 and c ^3 .

The answer is c

Step-by-step explanation:

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3 years ago

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A phone company charges 12 cents per minute of call. If Gerardo made a call that took 75 minutes using this plan, how much did h

sukhopar [10]

Answer:

900 cents, 9 dollars

Step-by-step explanation:

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3 years ago

HELP ME I DON'T UNDERSTAND IT :(

a_sh-v [17]

Answer:

Step-by-step explanation:

A is (-8,8) so you would divide each 8 by 4 because 8 divided by 1/4 so you will have (-2,2)

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