3 years ago

What is 65 percent of 78?

Mathematics

2 answers:

Allushta [10]3 years ago

5 0

Answer:

50.7

Step-by-step explanation:

siniylev [52]3 years ago

4 0

The percent of 65 of 78 is 50.7

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dem82 [27]

Answer:

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3 years ago

Math- Differentiation . Could you help me to solve this question?

Arlecino [84]

Answer:

Step-by-step explanation:

Hello, first of all we can find a value for f(1)

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And we can get the derivative of the equation so.

$(uv)'=u'v+uv' \text{ and } \dfrac{df(x^2)}{dx}=2xf'(x^2) \text{ so we can write}\\\\f(x)+xf'(x)+2xf'(x^2)=0\\\\\text{And then, for x = 1}\\\\f(1)+f'(1)+2f'(1)=0\\\\ f(1)+3f'(1)=0\\\\ 3f'(1)=-f(1)=-1\\\\\large \boxed{ f'(1)=-\dfrac{1}{3} }$