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3 years ago

−20≤10n i need a solution.

1 answer:

6 0

TAKE 10 ON THE OTHER SIDE 10 IS MULTIPLYING WITH n HENCE WHEN IT GOES TO OTHER SIDE IT WILL UNDERGO DIVISION
-20/10<n (or equal to)
-2<n

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A storage tank will have a circular base of radius r and a height of r. The tank can be either cylindrical or hemispherical (ha

Neko [114]

Answer:

Volume: $\frac{2}{3}\pi r^3$

Ratio: $\frac{2}{9}r$

Step-by-step explanation:

First of all, we need to find the volume of the hemispherical tank.

The volume of a sphere is given by:

$V=\frac{4}{3}\pi r^3$

where

r is the radius of the sphere

V is the volume

Here, we have a hemispherical tank: a hemisphere is exactly a sphere cut in a half, so its volume is half that of the sphere:

$V'=\frac{V}{2}=\frac{\frac{4}{3}\pi r^3}{2}=\frac{2}{3}\pi r^3$

Now we want to find the ratio between the volume of the hemisphere and its surface area.

The surface area of a sphere is

$A=4 \pi r^2$

For a hemisphere, the area of the curved part of the surface is therefore half of this value, so $2\pi r^2$ . Moreover, we have to add the surface of the base, which is $\pi r^2$ . So the total surface area of the hemispherical tank is

$A'=2\pi r^2 + \pi r^2 = 3 \pi r^2$

Therefore, the ratio betwen the volume and the surface area of the hemisphere is

$\frac{V'}{A'}=\frac{\frac{2}{3}\pi r^3}{3\pi r^2}=\frac{2}{9}r$

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2 years ago

Find the missing dimension of each triangle described height 14 inches area 245 inches Square

Amiraneli [1.4K]

Given:
Triangle
height 14 inches
area 245 inches square

Formula in finding the area of a triangle is:

Area = (height * base) / 2

The base is missing, so we need to compute its value using the given figures.

245 = (14 * b) / 2
245 * 2 = 14b
490 = 14b
490/14 = b
35 = b

The base is 35 inches.

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3 years ago

Kimberly Burns 360 cal in 45 minutes while jogging determine how many calories can really burns per minute

IgorLugansk [536]

Answer:

Step-by-step explanation:

360 divided by 45 is 8 calories per minute

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3 years ago

Which line best represents the line of best fit for this scatter plot?

allsm [11]

Answer:

Line D

Step-by-step explanation:

The line of best fit should be the one where majority of the points in the scatterplot lay near it
Line D is the line of best fit for this scatter plot

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1 year ago

Read 2 more answers

A restaurant used 8.4

Anarel [89]

Just divide 8.4 by 6. And you’ll get 1.4 ounces on each piece of pizza.

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3 years ago