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Math Help - Calculus question

  1. #1
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    Calculus question

    I am really stumped can someone help me on these questions. Please.
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  2. #2
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    Re: Calculus question

    Have you even tried to do this yourself? Most of this is just arithmetic.
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  3. #3
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    Re: Calculus question

    Okay no honestly I'm doing a test right now and I kind of need the answers for both of them :S
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  4. #4
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    Re: Calculus question

    Quote Originally Posted by buck View Post
    Okay no honestly I'm doing a test right now and I kind of need the answers for both of them :S
    Why can you at least type the questions out so that we can read them?

    Why did you post them so they appear sideways/

    You are the one asking for help, so make it easy for us to help.
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  5. #5
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    Re: Calculus question

    Here's how I would approach the two problems:

    For 6(a), P(0)=10, so you want to set P(t)=5 and solve for t. 6(b) is just asking for the derivative, and for 6(c) you just need to plug in the t you got from part (a) into the derivative in part (b).

    For question 7, the slope of the tangent is just the derivative of that function. You need to do a little calculation to figure out what you want it to be, then just take the derivative, set it equal to what you want it to be, and solve for x.

    If you're having trouble with something specific, let us know and we'll help you through it.

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