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3 years ago

8

Allison sent and received 240 text messages last month. 20% of those messages were sent to her best friend. How many text messag

es did Allison send to her best friend last month?

1 answer:

goldenfox [79]3 years ago

7 0

Answer:

48

Step-by-step explanation:

because 20% of 240 is 48.

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oksano4ka [1.4K]

I guess the function is $f(x)=9-x^{2/3}$ . Then $f(-27)=0$ and $f(27)=0$ .

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This doesn't contradict Rolle's theorem because $f'(0)$ does not exists. In other words, $f$ is not differentiable on (-27, 27), so the conditions of Rolle's theorem are not met. (Looks like that would be the last option, or the second to last option if the last one is "Nothing can be concluded")

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Answer:

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Step-by-step explanation:

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NOW, by tangent secant theorem:

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Step-by-step explanation:

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