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ira [324]
3 years ago
7

Determine two pairs of polar coordinates for the point (4, -4) with 0° ≤ θ < 360°.

Mathematics
2 answers:
grin007 [14]3 years ago
7 0
(4√2, 225°), (-4√2, 45°)
KatRina [158]3 years ago
4 0

The point (4, -4) lies in Quadrant IV. Since we are interested only in positive angles, we choose 315 degrees with a radius (magnitude) of 4√2. That automatically eliminates Answer Choices A, B and C, so all we have to do now is to verify that (-4√2, 135 degrees) also represents (4, -4). It does: Going to Quadrant II with angle 135 degrees, and then using -4√2 as the magnitude, takes us to Quadrant IV.

Thus, D is the correct answer.

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3 years ago
Sam wants to buy a CD player that costs $241. He has $25 that his uncle sent him for his birthday. He just started
Debora [2.8K]

Answer:

It will take Sam 18 weeks to save $241.

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7 0
3 years ago
HELP QUICK! worth extra points
Vikentia [17]

Answer: <em>3w+4b</em>

Step-by-step explanation:

<em>Take your given equation</em>

<em>w+w+w+b+b+b+b</em>

<em>There are 3 w's and 4 b's</em>

<em>Combine like terms</em>

<em>w+w+w=</em><em>3w</em>

<em>b+b+b+b=</em><em>4b</em>

<em>3w+4b</em>

3 0
3 years ago
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when you go to answer this, can someone please give me the steps on how to do it, because I think I'm doing it wrong ​
leva [86]

Answer:

TUA=123

Step-by-step explanation:

so first we find <TUS in terms of x

so 180-11x-2

178-11x

so now we can use the sum of a triangle's angles which is always 180 to find the angles in triangle TUS

178-11x+5x+10+58=180

178-6x=112

take 178 from both sides

-6x=-66

x=11

so we can do 11x11+2=TUA

TUA=123

6 0
3 years ago
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