$87.5 because 30% of 125 is 37.5 so 125-37.5 is 87.5
I think it should be option d
Inflection at f'(x) = 0
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x^1/2 / (1 + x + x^3) = 0 </span>
<span>The x coordinate is x = 0 </span>
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or "C" from your choices there. </span>
<span>The simplest way is to notice that this happens when x = 0. The reason is you got: </span>
<span>
x^1/2 / (some expression) </span>
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at x = 0 the numerator is 0 so unless the denominator is also 0 the result is 0. </span>
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The denominator for x = 0 is 1 so you get </span>
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0/1 = 0.
I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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