4 years ago

Alejandro solved the equation 5(7x^2-2)-8=3. He wrote 5(7x^2-2)=11 as his first step. Which property justifies his first step?

Mathematics

2 answers:

zheka24 [161]4 years ago

8 0

His first step justifies The Addition Property of Equality. Hope this helps.

Scorpion4ik [409]4 years ago

3 0

The addition property of equality. It says that if you add the same number to each side of the equation, the two sides of the equation will be equal. In this case, the number 8 was added to each side.

Hope this helps :)

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Step-by-step explanation:

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3 years ago

Read 2 more answers

What is when you divide 33-55 divide by 11 will egual

SVETLANKA909090 [29]

So if you means 33-55=-22
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3 years ago

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Step-by-step explanation:

Opposite Angles. Opposite angles are non-adjacent angles formed by two intersecting lines. Opposite angles are congruent (equal in measure).

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3 years ago

Simplify completely.

Arte-miy333 [17]

Answer:

$\large\boxed{\sqrt{27y^8}=3y^4\sqrt3}$

Step-by-step explanation:

$\sqrt{27y^8}=\sqrt{9\cdot3\cdot y^{4\cdot2}}\\\\\text{Use}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b},\ (a^n)^m=a^{nm}\ \text{and}\ \sqrt{a^2}=a\\\\=\sqrt9\cdot\sqrt3\cdot\sqrt{(y^4)^2}=3\cdot\sqrt3\cdot y^4=3y^4\sqrt3$

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