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OpenStudy (anonymous):
PLEASE HELP!! if f(x)=x^1/2 + x^-2 what is the value of f(4) 1. 1 15/16 2. 2 1/16 3. 2 1/2 4. 4 1/16
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OpenStudy (anonymous):
you plug 4 in for x so your equation will look like, (4)^1/2 + (4)^-2 and then you solve.
OpenStudy (anonymous):
it comes out to be 4, so what is the answer?
OpenStudy (anonymous):
you should not get 4. 4^1/2 = 2. And 4^-1/2 =0.125 So your answer is 2.125. Which as a fraction is 2 1/16
OpenStudy (anonymous):
thank you so much!!
OpenStudy (anonymous):
Anytime!
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