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nalin [4]
3 years ago
7

Use an Addition or Subtraction Formula to find the exact value of the expression sin(285°)

Mathematics
1 answer:
Flura [38]3 years ago
5 0
Use an Addition or Subtraction Formula to find the exact value of the expression sin(285°)

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Please answer this question! 32 points and brainliest!!
stepladder [879]

Answer:

3x^2 -7x +2

Step-by-step explanation:

(15x^2 -35x+10) ÷5

(15/5x^2 -35/5x+10/5)

3x^2 -7x +2

This will factor

(3x-1) (x-2)

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3 years ago
what is the equation of the line that passes through the point (-2, 14) and is perpendicular to the with the following equation?
Butoxors [25]

Answer: the y = -2/5x - 1

Step-by-step explanation: hoped this help you two

4 0
1 year ago
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fredd [130]

Answer:

4

Step-by-step explanation:

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3 years ago
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A teacher working's day is 7 1/2 hours long. one certain day, he spent 3 1/2 hours teaching and 2 1/2 hours marking student assi
SpyIntel [72]

Answer:

(a) 7/15

(b) 1/3

Step-by-step explanation:

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(3 1/2) / (7 1/2) = (7/2) / (15/2) = 7/2 * 2/15 = 7/15

(b) marking:

(2 1/2) / (7 1/2) = (5/2) / (15/2) = 5/2 * 2/15 = 5/15 = 1/3

4 0
3 years ago
If the circumference of a circle is 12, and the angle measure of an arc is 60o, which is the length of the arc?
Kaylis [27]
We can get the measurement of the arc by determining first the radius of the circle. The circumference of a circle is equal to 2 * pi * radius. Hence from a 12 unit2 circumferenced circle, the radius is 1.91 units.Length of the arc is equal to radius times the angle in radians. 60 deg is equal to pi over 3. The length of the arc is equal to 2 units.
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3 years ago
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