3 years ago

Given f(x) = 2x+5 and g(x) = -2x-2, evaluate: f(-2)

Mathematics

1 answer:

UkoKoshka [18]3 years ago

7 0

Ansswer:

Step-by-step explanation:

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Mademuasel [1]

Answer:

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Step-by-step explanation:

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3 years ago

Need help with this problem please!!!!

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3 years ago

A cube has a surface area of 900 cm what is the number of cubic cm in the volume of the cube

Anna [14]

SA = 900cm^2
SA = 6×(s^2), where "s" is one side or edge of each square surface face
900 = 6s^2
150 = s^2
$\sqrt{150} = \sqrt{ {s}^{2} }$
$\sqrt{25} \times \sqrt{6} = s$
$5 \sqrt{6} = s$
So each side is
$5 \sqrt{6} \: cm \: long$
The volume (V) of a cube is:
$v = {s}^{3} = (5\sqrt{6})^{3} = {12.247}^{3} \\ = 1837 \: {cm}^{2}$

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4 years ago

What is algebra I would really like it if you could help

Sergio039 [100]

Answer:

It is the branch of math that is in charge of dealing with letters known as variables.

Step-by-step explanation:

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3 years ago

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The length of a rectangle is 4 more than its width. The area of the rectangle is 21m2 . What is the measure of the width?

nadezda [96]

The width is 3m because 3*7 is 21m^2. Also they said the length is 4 more than the width (3+4=7)

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3 years ago