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3 years ago

What is the square root of 8 and why?

1 answer:

8 0

Rewrite 88 as 22⋅222⋅2.Factor 44 out of 88.√4(2)4⁢2Rewrite 44 as 2222.√22⋅222⋅2Pull terms out from under the radical.2√22⁢2The result can be shown in both exact and decimal forms.Exact Form:2√22⁢2Decimal Form:2.82842712…

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Dylan is six years older than his sister. If his sister's age is represented by the variable s, which of the following expressio

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S + 6

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What is the common difference of the sequence 20, 17, 14, 11, 8.... ?

Vinvika [58]

Answer:

-3

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Find lcm of 10x^2 , 30xy^2

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Inessa05 [86]

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3 years ago

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Find cot theta. (-6,-3sqrt(5)

cupoosta [38]

0 Pretend that is theta XD

cot 0 = $\frac{1}{tan0}$

Find tan 0.

tan 0 = $\frac{y}{x}$

tan 0 = $\frac{-3\sqrt{5}}{-6}$

tan 0 = $\frac{\sqrt{5}}{2}$

cot 0 = $\frac{1}{tan0}$

cot 0 = $\frac{1}{\frac{\sqrt{5} }{2} }$

Multiply 2/√5 to the numerator and the denominator (or multiply the reciprocal of the denominator to the top and bottom of the fraction)

cot 0 = $\frac{1}{\frac{\sqrt{5}}{2} } (\frac{\frac{2}{\sqrt{5}} }{\frac{2}{\sqrt{5}}} )$

cot 0 = $\frac{2}{\sqrt{5}}$

Multiply √5 to the numerator and the denominator

cot 0 = $\frac{2}{\sqrt{5}} (\frac{\sqrt{5} }{\sqrt{5} })$

cot 0 = $\frac{2\sqrt{5}}{5}$

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3 years ago