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marysya [2.9K]
3 years ago
14

Find one positive angle and one negative angle that are coterminal with the given angle. Explain.

Mathematics
1 answer:
Setler [38]3 years ago
3 0

Answer: 10) 615° & -105°

               12) -440° & 280°

<u>Step-by-step explanation:</u>

Coterminal means it is in the exact same spot on the Unit Circle but one <em>or more </em>rotations clockwise <em>or counterclockwise.</em>

Since one rotation = 360°, add or subtract that from the given angle until you get a positive <em>or negative</em> number.

10) 255° + 360° = 615°     (this is a POSITIVE coterminal angle to 255°)

     255° - 360° = -105°     (this is a Negative coterminal angle to 255°)

12) -800° + 360° = -440°   (this is a Negative coterminal angle to -800°)

    -440° + 360° =  -80°      (this is a Negative coterminal angle to -800°)

      -80° + 360° = 280°     (this is a POSITIVE coterminal angle to -800°)

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3 years ago
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6 0
2 years ago
Hannah buys two CD's for $9.95 each and three CD's at $11.99 each. How much does she spend altogether?
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3 years ago
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Answer correclty PLZZZ
ioda

Answer: option C is the correct answer

Step-by-step explanation:

The system of linear equations is

10x + 7y = 12 - - - - - - - 1

8x + 7y = 18 - - - - - - - 2

Since the coefficient of y is the same in equation 1 and equation 2, we will eliminate y by subtracting equation 2 from equation 1, it becomes

10x - 8x + 7y - 7y = 12 - 18

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x = - 6/2 = - 3

Substituting x = - 3 into equation 1, it becomes

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Let the constants be on the right hand side and the term containing y be on the left hand side. It becomes

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3 years ago
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3x+5y= 62.5
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3x + 5y = 62.5
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0 + 3y = 10.5, so y = 10.5/3 or 3.5.

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