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marissa [1.9K]
3 years ago
13

Express the polar coordinates (2,3pi/4) as Cartesian coordinates

Mathematics
1 answer:
Rus_ich [418]3 years ago
8 0

The Cartesian equivalent of the polar coordinates (r, theta) is

(r cos t, r sin t), where t = theta.

So, (2, 3pi/4) becomes

(2 cos(3pi/4), 2 sin(3pi/4))

(2 • -sqrt{2}/2, 2 • sqrt{2}/2)

Answer: (-sqrt{2}, sqrt{2})

Done.

Note: sqrt = square root for short.

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8 0
2 years ago
25 students are learning how to make balloon animals. There are 194 balloons to be shared equally among the students. How many b
alexdok [17]
25 students
194 balloons

194/25 = 7.76
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194 - 175 = 19 balloons remaining (Answer to part 1 of this question)

If each student needs 8 balloons
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We also could have found the answer to part 2 by saying that we had 19 balloons left over when the students each were given 7 balloons
Each student needs another 1 balloon = 25 balloons, 
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6 0
3 years ago
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Leno4ka [110]

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8 0
3 years ago
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WITCHER [35]

Answer:

-2x+5y should be the answer

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8 0
3 years ago
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weqwewe [10]

Answer:

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Step-by-step explanation:

Radius (r) = 7 cm

Height (h) = 4 cm

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______

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8 0
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