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Vinil7 [7]
3 years ago
9

Do not answer if you are unsure.

Mathematics
1 answer:
pishuonlain [190]3 years ago
3 0

Answer:

D. 5

Step-by-step explanation:

Mean: (50+60)/2

110/2

55

Margin of error:

60 - 55

5

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Y/4 = -3

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3+5i/-2+3i perform operation
melisa1 [442]

Answer:

\dfrac{9}{13}-\dfrac{19}{13}i

Step-by-step explanation:

Remember i^2=-1

You are given the fraction \dfrac{3+5i}{-2+3i}

First, multiply the numerator and the denominator by -2-3i:

\dfrac{3+5i}{-2+3i}=\dfrac{(3+5i)(-2-3i)}{(-2+3i)(-2-3i)}=\dfrac{(3+5i)(-2-3i)}{(-2)^2-(3i)^2}=\dfrac{(3+5i)(-2-3i)}{4-9i^2}=\dfrac{(3+5i)(-2-3i)}{4+9}

This gives you 13 in denominator, now multiply two complex numbers in numerator:

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Thus, the initial fraction is

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4 0
3 years ago
Determine the answer to (−5) + 4 and explain the steps using a number line (5 points)
Brut [27]
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irina [24]

Answer:

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Step-by-step explanation:

Treating pi as a variable, the simplified value can be written as;

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This can be obtained from using the following simple methodology;

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In this case, 9/2 is the slope.
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