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    jumperluver100's Avatar
    jumperluver100 Posts: 3, Reputation: 1
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    #1

    Mar 25, 2009, 08:08 AM
    Function with exponent
    The U.S infant mortality rate (# of deaths per 1000 births) can be approximated by the function f(x)=28.46x^-2/3, where x equals 34. What is the infant rate to the nearest whole number?

    I know there is a way to do it on a graphing calculator but I don't remember how to do it.
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
    Ultra Member
    		  
    #2

    Mar 25, 2009, 08:10 AM
    Just plug it in your calculator and round up.

    28.46*34^(-2/3)

    Make sure you put parentheses around the exponent.
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