All categories

3 years ago

Someone give me the answer plssssss

Mathematics

1 answer:

salantis [7]3 years ago

3 0

Answer:

????

Step-by-step explanation:

????

You might be interested in

(A) Husbands tend to have wives whose age is 85% of their own.

shusha [124]

Answer:answer is A

Step-by-step explanation:

husbands ten to have winve whose age is 85% of their own

I took the test!

please give me brainly

6 0

4 years ago

A cylindrical can, open at the top, is to hold 840 cm3 of liquid. Find the height and radius that minimize the amount of materia

ycow [4]

Answer:

the radius of the base is equal to $x=2\sqrt[3]{\frac{105}{\pi } }$

And the height is equal to:

$y=\frac{840}{\pi(2\sqrt[3]{\frac{105}{\pi}})^{2} }$

Step-by-step explanation:

We write the volume function

$f(x,y)=840=\pi x^{2} y$ where x is the radius of the base and y is the height of the cylinder

$y=\frac{840}{\pi x^{2} }$

The surface of a cylinder is given by

$S(x)=\pi x^{2} +2\pi xy=\pi x^{2} +\frac{1680}{x}$ on the interval from 0 to infinity

We now determine the critical values by differentiating and making the equation equal to 0

$f'(x)=2\pi*x- \frac{1680}{x^{2}} =\frac{2\pi x^{3}-1680}{x^{2} } =0$

This equation have 2 complex solutions and one real solution

$x=2\sqrt[3]{\frac{105}{\pi } }$

For x=0 and infinity the equation goes to infinity also so the radius of the base is equal to $x=2\sqrt[3]{\frac{105}{\pi } }$

And the height is equal to:

$y=\frac{840}{\pi (2\sqrt[3]{\frac{105}{\pi } })^{2} }$

$y=\frac{840}{\pi(2\sqrt[3]{\frac{105}{\pi}})^{2} }$

7 0

3 years ago

need a lot of help

marishachu [46]

2.60 x 12 3/4

2.60 x 12.75 (convert to decimal)

= $33.15, which is not listed.

3 0

2 years ago

Jennifer added $120 to her savings account during

enyata [817]

She had saved $480 before she added the money. Explanation: 700-120=480

4 0

3 years ago

Read 2 more answers

PLS PLS PLS HELP ME WITH THIS!!!!!!

nlexa [21]

Answer:

720

Step-by-step explanation:

8 0

3 years ago