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3 years ago

9

(-3 √-9)^2 write your answer in standard form a ib

1 answer:

Brilliant_brown [7]3 years ago

4 0

If you would like to write <span>(-3 + √-9)^2 in a standard form a + i * b, you can do this using the following steps:

</span>(-3 + √-9)^2 = (-3)^2 - 2 * 3 * √-9 + (<span>√-9)^2 = 9 - 6 * 3 * i - 9 = 0 - 18 * i = -18 * i
</span>
The correct result would be -18 * i.

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Read 2 more answers

Solve LaTeX: \frac{-x}{3} \:-15 x > − 15 LaTeX: x\: \:-2

Fudgin [204]

Answer:

<h3>The answer is option A</h3>

Step-by-step explanation:

<h3> $\frac{ - x}{3} < 5$ </h3>

<u>First of all cross multiply</u>

That's

<h3> $- x < 5 \times 3 \\ - x < 15$ </h3>

Next divide both sides by - 1 to make x positive and change the sign from < to >

That's

<h3> $\frac{ - x}{ - 1} < \frac{ 15}{ - 1}$ </h3>

We have the final answer as

<h2> $x > - 15$ </h2>

Hope this helps you

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3 years ago