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Vika [28.1K]
3 years ago
15

What is -2(7-y)+4=-4?

Mathematics
1 answer:
xeze [42]3 years ago
3 0
-2(7-y)+4=-4
Distributive property for -2(7-y)
-14+2y+4=-4
Addition property
-14+14+2y+4=-4+14
2y+4=10
Subtraction property
2y+4-4=10-4
2y=6
Division property
2y/2=6/2
Y=3
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For the rotation - 660°, find the coterminal angle from 0° < 0 < 360°, thequadrant and the reference angle.
guajiro [1.7K]

Given the angle:

-660°

Let's find the coterminal angle from 0≤θ≤360.

To find the coterminal angle, in the interval given, let's keep adding 360 degrees to the angle until we get the angle in the interval,

We have:

Coterminal angle = -660 + 360 = -300 + 360 = 60°

Therefore, the coterminal angle is 60°.

Since 60 degrees is between 0 to 90 degrees, is is quadrant I.

60 degrees lie in Quadrant I.

Also since it is in quadrant I, the reference angle is still 60 degrees.

ANSWER:

The coterminal angle is 60°, which lies in quadrant I, with a reference angle of 60°

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1 year ago
1+1 pls fast right now​
Marianna [84]

Answer:

2

Step-by-step explanation:

smarty pants obv

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2 years ago
Read 2 more answers
What's the operation for 2(t+1)=10
fiasKO [112]
The answer is t=4 hope it right
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