3 years ago

Russell has already taken 540 quizzes during past quarters, and he expects to have 5 quizzes

1 answer:

atroni [7]3 years ago

6 0

Answer:

565

Step-by-step explanation:

5x5=25

540+25=565

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Genrish500 [490]

The answer is A -0.7
-2(n) + 1.8 simplifies to:
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- 1.8 -1.8
-2n = 1.4
n = -7

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max2010maxim [7]

I hope this helps you

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3 years ago

SVEN [57.7K]

Note that if $i^2=-1$ than $i=\sqrt{-1}$ ,

Also note that $\sqrt{ab}=\sqrt{a}\sqrt{b}$

So we have,

$\sqrt{-49}=\sqrt{-1}\sqrt{49}=\boxed{7i}$

and,

$\sqrt{-4}=\sqrt{-1}\sqrt{4}=\boxed{2i}$

Hope this helps.

r3t40

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avanturin [10]

Answer: D , -4/7

Step-by-step explanation:

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Alexandra [31]

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Step-by-step explanation:

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