2 years ago

Consider the system of equations. 20 POINTS NEED HELP ASAP

Mathematics

1 answer:

Alex2 years ago

3 0

- 5x - 1 = 2x + 6

- 7x = 7

7x = -7

x = -1

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dezoksy [38]

Answer:

-46

Step-by-step explanation:

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2 years ago

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I know I need to divide the polynomials but i don't know the equation

andrezito [222]

Answer:

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Step-by-step explanation:

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3 years ago

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evablogger [386]

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2 years ago

I don't know how to solve this

Assoli18 [71]

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8 0

3 years ago

Question 1: find the volume of a cube whose total surface area is 486cm^2

lapo4ka [179]

<h3>The volume of cube is 729 cubic centimeter</h3>

Solution:

The surface area of cube is given as:

$Surface\ area = 6a^2$

Where, "a" is the length of side of cube

Given that, surface area = 486 square centimeter

$486 = 6a^2\\\\a^2 = \frac{486}{6}\\\\a^2 = 81\\\\a = 9$

Find the volume of cube:

$volume\ of\ cube = a^3\\\\volume\ of\ cube = 9^3\\\\volume\ of\ cube = 9 \times 9 \times 9\\\\volume\ of\ cube = 729$

Thus volume of cube is 729 cubic centimeter

8 0

3 years ago