February 26, 2017

Homework Help: Math(Please help)

Posted by Hannah on Saturday, April 30, 2011 at 11:00am.

1) h(t)=20(5/8) - 16(5/8)^2 + 10 = 65/4

All I need to know for this is how to calculate the fraction parts to get 65/4. I am not good with fractions.

2) A manufacturer's profit from producing x units of a product is given by P(x)=0.002x^3 - 0.01x^2 + 0.5x. At what production level(s) will the marginal profit be $9.30 per unit. Enter just an integer, no units.

the derivative would be p(x)=0.006x^2 - 0.02x + 0.50. Then would I just plug in 9.30 to x?

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