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2 years ago

I’m don’t understand stand these that well, can someone please explain step by step to get marked.

Mathematics

2 answers:

wariber [46]2 years ago

8 0

Answer:

Step-by-step explanation:

press calculate

pls give brainliest

kicyunya [14]2 years ago

8 0

Answer: 10

Step-by-step explanation:

The sign √ means square root. Squaring is like multiplying a number by its own self again ( for example, x times x is equal to x squared). A square root is like dividing the square by its own self ( for example, √x^2 is equal to x ).

The square root of 100 is 10, since 10 squared is equal to 100.

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Annette [7]

The answer to the question is as the following.

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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2 years ago

Me and my friend were checking answers, but then our answers differed on one question by one digit. The question is: [(21-13)+(3

Sunny_sXe [5.5K]

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3 years ago

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Solve 3x + 7 > -x - 9. Show each step of your work.

Kruka [31]

Answer:

x > -4

Step-by-step explanation:

Inequalities like these are solved the same way equations are solved, except when multiplying both sides you flip the less than/greater than sign:

3x + 7 > -x -9

3x + 7 - 7 > -x -9 -7 Subtract 7 from both sides

3x > -x -16

3x + x > -x -16 + x add x to both sides

4x > -16

$\frac{4x}{4}$ > $\frac{-16}{4}$ divide both sides by 4

x > -4

In this case the inequality sign did not have to be flipped since we never multiply both sides by a negative number.

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2 years ago