3 years ago

Evaluate/simplify this problem (3 - 3i)(-6 + 3i)

2 answers:

mezya [45]3 years ago

6 0

Multiply using the foil method, then combine. This will give you -9+27i

4 0

-18+9i because if you use the foil technique then this would be your answer

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serg [7]

Answer:

Step-by-step explanation:

Because a and b are both opposite 45 degree angles, a=b. Using the Pythagorean Theorem we can say.

$2a^2=28^2\\ \\ 2a^2=784\\ \\ a^2=\frac{784}{2}\\ \\ a=\sqrt{\frac{784}{2}}\\ \\ a=\frac{28}{\sqrt{2}}$

7 0

3 years ago

hjlf

Answer:

I want someone to help me with my question

5 0

3 years ago

lesya [120]

C cuz if it opens down a is negative and also it’s a parabola so it’s quadratic

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3 years ago

notsponge [240]

To add 1/2 and 5/12, make both fractions have the same denominator:

1/2 is the same as 6/12, so 6/12+5/12=11/12

Thus, B is right.

7 0

3 years ago

Olegator [25]

I’m pretty sure your correct. Just did the math on paper.

8 0

3 years ago