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3 years ago

It cost Joseph $20.10 to send 134 text messages. How much does it cost to send one text message? Show your work.

Mathematics

1 answer:

Licemer1 [7]3 years ago

8 0

$20.10/134
$0.15 cost for one message

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3 years ago

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Given the function f(x) = -2x2 + 4x - 7, find f(-4).<br> -55<br> -7<br> 25

Neko [114]

Answer:

f(-4)= -55

Step-by-step explanation:

We want to find f(x), or y, when x is equal to -4.

Therefore, we can substitute -4 in for x in the function.

f(x) = -2x^2 + 4x - 7

Substitute -4 in for x

f(-4) = -2(-4^2) + 4(-4) - 7

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f(-4)=-2(16)+4(-4)-7

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2 years ago

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