Please help fast i need to finish this fast plz

Mathematics

2 answers:

Zolol [24]3 years ago

8 0

Answer:

B C A D

Step-by-step explanation:

Basile [38]3 years ago

3 0

Answer:

...

Step-by-step explanation:

1st one is B: What is the total number of attendees at a movie?

Since all the other answer have a definite answer.

2nd one is A: How many cavities have you had in the last 5 years?

That answer shows you how well your dentist is as well as your hygiene.

3rd one is D: What age are the children who attend Boys and Girls Club programs in your town?

They would have a variety of ages to take data on,

4th one is C: e=7h

What amount she earns divided by 7 will be the hours she works. She makes $7 and hour.

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CJ walks 8 miles in 3 hours. at what unit rate does CJ walk? Please only answer is you understand the question

andrey2020 [161]

Answer:

Step-by-step explanation:

I had this on my previous test, lol

8 0

3 years ago

Find the x-coordinates of any relative extrema and inflection point(s) for the function f(x)= 6x^1/3 + 3x^4/3. You must justify

irina [24]

Answer:

x-coordinates of relative extrema = $\frac{-1}{2}$

x-coordinates of the inflexion points are 0, 1

Step-by-step explanation:

$f(x)=6x^{\frac{1}{3}}+3x^{\frac{4}{3}}$

Differentiate with respect to x

$f'(x)=6\left ( \frac{1}{3} \right )x^{\frac{-2}{3}}+3\left ( \frac{4}{3} \right )x^{\frac{1}{3}}=\frac{2}{x^{\frac{2}{3}}}+4x^{\frac{1}{3}}$

$f'(x)=0\Rightarrow \frac{2}{x^{\frac{2}{3}}}+4x^{\frac{1}{3}}=0\Rightarrow x=\frac{-1}{2}$

Differentiate f'(x) with respect to x

$f''(x)=2\left ( \frac{-2}{3} \right )x^{\frac{-5}{3}}+\frac{4}{3}x^{\frac{-2}{3}}=\frac{-4x^{\frac{2}{3}}+4x^{\frac{5}{3}}}{3x^{\frac{2}{3}}x^{\frac{5}{3}}}\\f''(x)=0\Rightarrow \frac{-4x^{\frac{2}{3}}+4x^{\frac{5}{3}}}{3x^{\frac{2}{3}}x^{\frac{5}{3}}}=0\Rightarrow x=1$