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4 years ago

How do you round to the nearest 100 to 52

Mathematics

1 answer:

Delicious77 [7]4 years ago

3 0

Think of 52 as 052. Is 5 closer to 10 so your answer is 100.

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How to Determine the type of triangle that is drawn below

mafiozo [28]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

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

The water rate is $1.39 per 792 gallons of water used. What is the water bill for using 40,000 gallons of water?

kirza4 [7]

Answer:

$70.2 (approximately)

Step-by-step explanation:

Cost per gallon is, $1.39/792

so, for 40,000 gallon,

$1.39×40,000/792

= $6950/99

≈ $70.2

Answered by GAUTHMATH

3 0

3 years ago

Need a quick answer please

Zanzabum

Answer:

8 fits the equation

Step-by-step explanation:

hope this helps

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3 years ago

The circumference of a circular field is 175.84 yards. What is the diameter of the field?

Travka [436]

Answer:

Circumference =pie = d

So d=175.84/3.14

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4 years ago