( FOOLISH ANSWERS WILL BE REPORTED) help i will give brainliest 6th grade mαth

Mathematics

2 answers:

Lelechka [254]3 years ago

6 0

9514 1404 393

Answer:

125

Step-by-step explanation:

The proportion you want is ...

$\dfrac{\text{part}}{\text{whole}}=\dfrac{65}{\text{?}}=\dfrac{52}{100}\\\\6500=52\cdot\text{?}\qquad\text{cross multiply}\\\\\dfrac{6500}{52}=125=\text{?}\qquad\text{divide by 52}$

52% of 125 is 65.

<em>Comment on the formulation</em>

You can write the same proportion 4 ways. I find it convenient to choose one that has the unknown in the numerator. Here, that means you would write it ...

whole/part = 100/52 = ?/65

Then the solution is one step: multiply by 65.

SCORPION-xisa [38]3 years ago

4 0

Answer:

33.8

Step-by-step explanation:

33.8 is the closest to half of 65.

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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.

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