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NEED HELP!!!!

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The following questions were asked by visitors named NEED HELP!!!!.

Answer the following questions for the function f(x)=sin(x/4)^2 defined on the interval [-12.266371, 2.241593]. Rememer that you can enter pi for as part of your answer. a.)f(x) is concave down on the interval ____. b.) A global minimum for this function...
14 years ago
A 20-year-old student decided to set aside $100 on his 21st birthday for investment. Each subsequent year through his 55th birthday, he plans to increase the investment on a $100 arithmetic gradient. He will not set aside additional money after his 55th b...
11 years ago

Answers

The following answers were posted by visitors named NEED HELP!!!!.

I REALLY NEED HELP ANSWERING THIS. I mange to get b and c but i'm stuck on the other two
14 years ago
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