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3 years ago

An 80% increase followed by a 40% decrease

Mathematics

1 answer:

scZoUnD [109]3 years ago

4 0

You start with 100%, add 80% for the increase and you get 180%, take away 40% for the decrease and you get 140%

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What is the volume of a hemisphere that

ch4aika [34]

Given:

Given that the diameter of the hemisphere is 12.6 cm

The radius of the hemisphere is given by

$r=\frac{d}{2}=\frac{12.6}{2}=6.3$

We need to determine the volume of the hemisphere.

Volume of the hemisphere:

Let us determine the volume of the hemisphere.

The volume of the hemisphere can be determined using the formula,

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

Substituting the values, r = 6.3 and π = 3.14, we have;

$V=\frac{2}{3} (3.14)(6.3)^3$

Simplifying the values, we have;

$V=\frac{2}{3} (3.14)(250.047)$

$V=\frac{1570.29516}{3}$

Dividing, we have;

$V=523.43172$

Rounding off to the nearest tenth, we get;

$V=523.4$

Thus, the volume of the hemisphere is 523.5 cm³

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2 years ago

Nancy is asked to use her calculator to find the volume of a cylindrical canister that has a radius of 10.55 cm and a height of

Murljashka [212]

use the formula given:

V = pi r^2h

r = 10.55

h = 12.56

V = 3.14 x 10.55^2 x 12.56 = 4391.81 round off to 4392cm^3

answer is D 4392

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3 years ago

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Akimi4 [234]

Answer:

m = -1.25

Step-by-step explanation:

Slope = (Y2-Y1) = (9-14) = (-5) = -1.25

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Scilla [17]

Answer:

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Step-by-step explanation:

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2 years ago