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Step2247 [10]
3 years ago
14

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

Mathematics
2 answers:
mezya [45]3 years ago
6 0
Multiply using the foil method, then combine. This will give you -9+27i
igor_vitrenko [27]3 years ago
4 0
-18+9i because if you use the foil technique then this would be your answer

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Oduvanchick [21]
Your answer would be B 
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Snowcat [4.5K]
F(1) = 2
f(2) = 3f(1) = 3(2) = 6
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Determine if the two triangles are congruent.
goldenfox [79]

Answer:

Yes

Step-by-step explanation:

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HTH :)

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3 years ago
Use elimination to solve the system of equations given by 3x - 2y = 10 and 5x + 2y = 6​
pishuonlain [190]

Answer:

x = -2  y= -8 and 8

Step-by-step explanation:

Since there is an equal number of y's, they cancel out when subtracting. You can put either equation on top. You will get same answer.

<u>To find x:</u>

<u>If you do (3x - 2y = 10) - (5x + 2y = 6​),</u> you will get -2x=4. Divide both sides by -2, and get x = -2.

<u>If you do (5x + 2y = 6​) - (3x - 2y = 10)</u>, you will get 2x=-4.Divide both sides by 2, and get x = -2.

<u>To find y:</u>

Substitute -2 for x in either equation. It doesn't matter.

<u>For 3(-2) - 2y = 10:</u>

3(-2) - 2y = 10 ––Multiply

-6 - 2y =10 ––Add 6 to both sides to get y alone

-2y = 16 ––Divide by -2

y = -8

<u>For 5x + 2y = 6​:</u>

5(-2) + 2y = 6​ ––Multiply

-10 + 2y = 6 ––Add 10 to both sides to get y alone

2y = 16 ––Divide by 2

y = 8

 

6 0
2 years ago
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