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Mandarinka [93]
3 years ago
12

Simplify the expression (9 + 2i)(9 − 2i): 81 − 18i 81 + 18i 77 85

Mathematics
1 answer:
guajiro [1.7K]3 years ago
7 0

Answer:

Answer is 85. Can't simplify it anymore

Step-by-step explanation:

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Khalil says that any time two numbers are the same distance from 0, their sum will be zero. Marius disagrees. "Sometimes the sum
Gelneren [198K]

Answer:

Marius is right.

Step-by-step explanation:

So although what Khalil said could be correct, they didn't say it right. It would be any two numbers the same distance from 0 <u>going the opposite ways</u>, which means that if you had 3 on one side, you would have -3 on the other side. BUt since Khalil said it wrong, he's basically saying that you can do 3+3 because they're both the same distance away from 0. or you could do (-3)+(-3)=-6 which would still work because they're the same distance away from 0. So unless you just skipped on that part while typing the question, Marius is correct.

7 0
3 years ago
Help me please hurry it up.
Katena32 [7]

The answer is either to change the - 1 to 0, or to add + 1 to it next to the - 1.

4 0
3 years ago
Solve. Please show your work
Sphinxa [80]

Answer:

128

Step-by-step explanation:

8^2√2^2

64√2^2              rewrite √2^2 as 2

64*2

=128

5 0
3 years ago
I need help with this <br><br> 10 points <br><br> Pls pls pls someone come help me
Vikki [24]

Answer:

angle b is 62 degrees. This is because if we solve for x, by putting the 2 equations equal to each other(because they are vertical angles), than we figure out that x=6. Now plug that into angle b's equation, and you get 62 degrees.

Step-by-step explanation:

7 0
4 years ago
Jamie wants to make a playlist with 8 songs on her iPod. She has 50 songs to choose from, including 15 songs from Maroon 5. Jani
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So she has 45 songs

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3 years ago
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