2 years ago

Find mZA. Round to the nearest degree. 10 10 B 13 11

Mathematics

2 answers:

Lunna [17]2 years ago

6 0

G office give rn sick in NCO IX do ox cl bc VP oz cl ox CK iz VP ox VP ox

nadezda [96]2 years ago

5 0

Step-by-step explanation:

${13}^{2} = {10}^{2} + {11}^{2} - 2 \times (11)(10) \cos(a) \\ 169 = 100 + 121 - 110 \cos(a) \\ 52 = 110 \cos(b) \\ \cos(b) = \frac{26}{55} \\ b = 61.78 \: degrees$

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There are three monomials such that the greatest common factor of the first and second monomials is 2xy, and the greatest common

sveta [45]

The gratest comon factor is 2

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2 years ago

Solve the system of equations x - y = 12 and x + 7y = -20 by combining the equations.

iogann1982 [59]

Answer:

x=16, y=-4

Step-by-step explanation:

-1(x-y=12)

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2 years ago

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Find the equation of the line that passes through (-1,3) and is perpendicular to 2y=x−1. Leave your answer in the form y=mx +c A

Lostsunrise [7]

Answer:

y = -2x + 1.

Step-by-step explanation:

2y = x - 1

y = 1/2y - 1/2

If line X is perpendicular to line Y (the line where y = 1/2y - 1/2), the slope will be the negative reciprocal of line Y. That means that there will be a negative sign instead of positive, and the 1/2 will be flipped to become 2/1, which is 2.

So, the slope will be -2.

We now have y = -2x + c.

To find c, simply put in -1 for x and 3 for y.

3 = -2 * -1 + c

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So, the equation of the line is y = -2x + 1.

Hope this helps!

8 0

2 years ago

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