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zmey [24]
3 years ago
6

Simplify. (-√7)(-√7)

Mathematics
1 answer:
Savatey [412]3 years ago
5 0

Answer:

<em><u>7</u></em>

Step-by-step explanation:

(-√7)(-√7)

(-\sqrt{7})^2

(\sqrt{7})^2

<em><u>7</u></em>

<em><u /></em>

<em><u>Please Mark As Brainliest</u></em>

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There were 10 baked goods in a basket. four of them were sold. write a fraction to show the part of the baked goods that were no
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the shorter leg of a right triangle is 8 inches shorter ybsn the longer leg. the hypotenuse is 8 inches longer thsn the longer l
Artyom0805 [142]

Answer:

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Step-by-step explanation:

Given:

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  • hypotenuse is 8inches longer than the longer leg
  • longer leg = x inches

<u>Pythagorean Theorem:</u>

a²+b²=c² → (x-8)²+ x² = (x+8)²

Solving for both sides:

x² - 16x+ 64 + x² = x²+ 16x + 64

<u>More Painful Solving:</u>

x² - 32x = 0

x(x-32) = 0

 

x=0 or 32

Can't use the 0 so we trash it!

x=32

add 8 to get the hypotenuse and subtract 8 to get the short leg

8 0
3 years ago
7) What is the area of the figure below?<br> 12 cm<br> 13 cm<br> 20 cm<br> 21 cm
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Answer:

65,520

Step-by-step explanation:

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4 0
3 years ago
1. What's 7/8 as a decimal?
denpristay [2]

Answer:

0.875

Step-by-step explanation:

7/8 as a decimal is 0.875. Another was of thinking of this is the number '7' is 87.5 percent of the number '8.

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3 years ago
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