3 years ago

7th grade math

Mathematics

1 answer:

maw [93]3 years ago

3 0

Answer:

Can you please post a picture...it will help me understand it more!

Step-by-step explanation:

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Divide and simplify to the form a+bi. 5+6i 5+6i 6+ i (Simplify your answer. Type an integer or a fraction. Type your answer in t

alekssr [168]

Answer:

$-\frac{6}{37} + \frac{371}{37}i$

Step-by-step explanation:

We need to evaluate $\frac{(5+6i)(5+6i)}{6+i}$

(5+6i)(5+6i) = (25 + 36i² + 60i) = (25 - 36 + 60i) = -11 + 60i

= $\frac{-11+60i}{6+i}$

Now we rationalize the denominator.

Now, multiplying both the numerator and denominator by (6-i)

$\frac{-66 + 11i + 360i - 60i^2}{36 - i^2} = \frac{-66 + 60 + 371i}{37} = \frac{-6 + 371i}{37}$

= $-\frac{6}{37} + \frac{371}{37}i$

Formula used:

(a+b)² = a² + b² + 2ab

i² = -1

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4 years ago

The school talent show is 90 minutes long. The average rate of the show is about 10 acts every 30 minute. At this rate, how many

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Answer:

C. 30

90/30=3

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SECOND PART

the second year would only have 25 acts

100/4=25

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3 years ago

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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