3 years ago

Simplify square root of negative 72

2 answers:

8 0

Factor inside the radical to reveal a perfect square

extract the square root of 36
What is Square root of negative 72
Write it

extract the square root of -1 which is "i"

FinnZ [79.3K]3 years ago

3 0

8.485 is the square root

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NISA [10]

Answer:

2,34x

Step-by-step explanation:

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2 years ago

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Evaluate: -0.7 - (-2.6 + -0.8) + 7.1

SpyIntel [72]

Answer:

8.36

Step-by-step explanation:

$-0.7-(-2.6+ -0.8) +7.1\\ (add inside the parenthesis)\\\\-0.7 - 3.4 + 7.1\\\\=8.36$

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3 years ago

Find x in this 45°-45°-90° triangle. x = 4.5√2 9 18

postnew [5]

Answer:

x = 9

Step-by-step explanation:

Using the sine ratio in the right triangle and the exact value

sin45° = $\frac{1}{\sqrt{2} }$ , then

sin45° = $\frac{opposite}{hypotenuse}$ = $\frac{x}{9\sqrt{2} }$ = $\frac{1}{\sqrt{2} }$ ( cross- multiply )

x × $\sqrt{2}$ = 9 $\sqrt{2}$ ( divide both sides by $\sqrt{2}$ )

x = 9

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Amanda [17]

Idk if I’m right but I’m going with 6=30

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An interior angle of a regular polygon is eleven times its exterior

Rainbow [258]

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