3 years ago

Add or subtract as indicated and write the result in standard form. 5i - (-5 - i)

1 answer:

5 0

Simplify by combing the real and imaginary parts of each expression.

5 + 6i

Arrange the expression into the a+bi form of a complex number.

5+ 6i

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dexar [7]

$\huge\boxed{x=25}$

The mistake is in Step 1. The solver should have also squared $9$ when squaring the other side of the equation.

<h3>Correctly solving</h3>

$\begin{aligned}\sqrt{3x+6}&=9\\(\sqrt{3x+6})^2&=9^2\\3x+6&=81\\3x+6-6&=81-6\\3x&=75\\\frac{3x}{3}&=\frac{75}{3}\\x&=25\end{aligned}$

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2 years ago

pantera1 [17]

your answer is 41.38

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4 years ago

Slav-nsk [51]

I can't answer unless you can provide a picture. Send a pic and I'll help!

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4 years ago

Ne4ueva [31]

Answer: Top right and left are ACUTE, Bottom right is RIGHT, and bottom left is OBTUSE.

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3 years ago

Soloha48 [4]

I believe it would be 999,999

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3 years ago