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klasskru [66]
3 years ago
15

Jackie bicycles 9 kilometers west to get from her house to school. After school, she bicycles 12 kilometers north to her friend

Ronald's house. How far is Jackie's house from Ronald's house, measured in a straight line?
Mathematics
1 answer:
klemol [59]3 years ago
8 0
Answer:

21 kilometers!

Explanation: You add the two distances she rode her bicycle and add them together. 9+12 = 21kilometers!
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Trig: Which complex number's graph is shown?
Andrei [34K]

ANSWER

2 \sqrt{2} ( \cos( \frac{7\pi}{4}   + i  \sin(  \frac{7\pi}{4} ) )

EXPLANATION

The complex number shown has coordinates (2,-2)

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3 0
3 years ago
What is the length of AC¯¯¯¯¯ ?
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Answer:

AC = 12.38 cm

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When there are 2 pairs given, we can use the sine rule to solve the problem.

By pairs we mean "an angle and side opposite to it"

<em>1 pair is 85.2 degree angle and 13 cm, and another pair is 71.6 degree angle and the side AC (which we want to figure out).</em>

<em />

Sine Rule is given by \frac{SinA}{a}=\frac{SinB}{b}

where,

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Thus, AC = 12.38 cm

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3 years ago
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