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MakcuM [25]
2 years ago
13

Which equation shows a valid step in solving /2x-6+2x+6=0?

Mathematics
1 answer:
AfilCa [17]2 years ago
5 0

An equation which shows a valid step that can be used to solve the given mathematical equation is (\sqrt[3]{2x - 6})^3 = (-\sqrt[3]{2x + 6})^3

<h3>What is an equation?</h3>

An equation simply refers to a mathematical expression that can be used to show the relationship existing between two (2) or more numerical quantities.

In this exercise, you're required to show a valid step which can be used to solve the given mathematical equation. Since both equations are having a cube root, the first step is to take the cube of both sides.

Take the cube of both sides, we have:

\sqrt[3]{2x - 6} + \sqrt[3]{2x + 6} = 0\\\\(\sqrt[3]{2x - 6})^3 + (\sqrt[3]{2x + 6})^3 = 0^3\\\\(\sqrt[3]{2x - 6})^3 = (-\sqrt[3]{2x + 6})^3

Read more on equations here: brainly.com/question/13170908

#SPJ1

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Answer:

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Step-by-step explanation:

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3 0
3 years ago
The shorter side of a trapezoid is equal to its height, and the longer side is 3/2 times as long. If the area is 80, find the le
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Answer:

  8

Step-by-step explanation:

Let s represent the length of the shorter base and height. Then (3/2)s is the length of the longer base.

The area formula for a trapezoid is ...

  A = 1/2(b1 +b2)h

Filling in the given values, we have ...

  80 = (1/2)(s +3/2s)s = 5/4s²

  64 = s² . . . . . . . . . . . . . . . . . . . multiply by 4/5

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The length of the shorter side is 8.

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7 0
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$54.79 - $29.99 = $24.80

$24.80 + .25 = $25.05

$25.05 - $4.07 = $20.98

Mrs.Heat has $20.98 dollars in her wallet now.

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