B -13 -34i

(7 + 2i)(-3 - 4i)
Take the 7 then times it buy the second bracket 7x(-3-4i) then take 2i from the first bracket and times it with the second bracket 2ix (-3-4i)

Then keep simplifying

5 0

2 years ago

I need help pleaseeeeee

MA_775_DIABLO [31]

Answer:

Step-by-step explanation:

5 0

3 years ago

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What is the probability that you and your friend are both chosen?

WINSTONCH [101]

Answer: $\frac{2}{35}$

Step-by-step explanation:

Given: The total number of ways of to choose 3 contestants out of 7 (including me and my friend)=35..................> Total outcomes.

Favorable outcomes = 2

Then the probability that me and my friend are both chosen = $\frac{\text{favorable outcomes }}{\text{Total outcomes}}$

Thus , the probability that me and my friend are both chosen = $\frac{2}{35}$

5 0

3 years ago

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