4 years ago

What is the answer for C? Thanks in advance! :D

Mathematics

1 answer:

Snezhnost [94]4 years ago

6 0

Hmmm.... let us hope u will find the answer u whor looking for

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Find the rectangular coordinates of the point ( -3, 1/2 π)

alexdok [17]

Answer:

$x = -3 cos (\frac{\pi}{2})= 0$

$y = -3 sin (\frac{\pi}{2})= -3$

And then the rectangular coordinates for this case are :

$(x = 0 , y = -3)$

Step-by-step explanation:

We have the following point given $P = (-3, \frac{\pi}{2})$ and we want to conver from polar to rectangular coordinates and we need to use the following formulas:

$x = r cos \theta$

$y = r sin \theta$

For this case we have that:

$r = -3$

And:

$\theta = \frac{\pi}{2}$

Replacing we got:

$x = -3 cos (\frac{\pi}{2})= 0$

$y = -3 sin (\frac{\pi}{2})= -3$

And then the rectangular coordinates for this case are :

$(x = 0 , y = -3)$

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4 years ago

"If a = − 9 and b = − 6, show that (a−b) ≠ (b−a)."

denis-greek [22]

Answer:

Step-by-step explanation:

LHS a - b = -9 - (-6) = -9 +6 = -3

RHS b-a = -6 - (- 9) = -6 +9 = 3

as LHS not equal to RHS

a-b not equal to b-a

Thus proven

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3 years ago

PLEASE HELP ME!!! GEOMETRY!<br> Please help me find the proofs that I would use in parts a and b.

-Dominant- [34]

a) substitution (refer to statements 1 and 2)

b) definition of supplementary

c) subtraction property of equality

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3 years ago

Which represents the measures of all angles coterminal with a 400° angle?

ozzi

It’s c, for any integer,n

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3 years ago

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Nine months ago Alexa deposited $7,000 in a three-year CD. She has received $224.16 in interest.

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7000 + 224.16 = $7,224.16
This would the balance in her account.

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4 years ago