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3 years ago

5

I don’t understand this

1 answer:

Westkost [7]3 years ago

8 0

What are the direction or it 23

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Evaluate the expression for <br> x = 4, y=-2, z= -3.<br> 2² + 8zy - y²

andrew11 [14]

Answer:

Pretty sure its 53

Step-by-step explanation:

9+48-4

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3 years ago

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6. What will you get when you combine -14, -9 and 3 A. 12 B. 58 C.-12 D. -58

vlada-n [284]

Answer:

the answer is A I think it will help u

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2 years ago

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IM DONE WITH THIS STUPID THING 50 POINTS TO THE PERSON WHO GETS IT ALL CORRECT.

soldi70 [24.7K]

I underlined the numbers you needed

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3 years ago

Evaluate $\dfrac{2\sqrt{72}}{\sqrt{8}+\sqrt{2}}$.

Pavlova-9 [17]

<h3>Answer: 4</h3>

========================================================

Work Shown:

$\frac{2\sqrt{72}}{\sqrt{8}+\sqrt{2}}\\\\\frac{2\sqrt{36*2}}{\sqrt{4*2}+\sqrt{2}}\\\\\frac{2\sqrt{36}*\sqrt{2}}{\sqrt{4}*\sqrt{2}+\sqrt{2}}\\\\\frac{2*6*\sqrt{2}}{2*\sqrt{2}+\sqrt{2}}\\\\\frac{12\sqrt{2}}{2\sqrt{2}+\sqrt{2}}\\\\\frac{12\sqrt{2}}{3\sqrt{2}}\\\\\frac{12}{3}\\\\4$

Note in step 2, I factored each number in the square root to pull out the largest perfect square factor. From there, I used the rule that $\sqrt{A*B} = \sqrt{A}*\sqrt{B}$ to break up the roots.

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2 years ago

tester [92]

Answer:

6,0 4,8

Step-by-step explanation:

because i know

4 0

2 years ago