The answer is B because the bottom has to be supplementary to 180 degrees because their supplementary angles
Hi there!!
Your answer is 20.
Since A = 40 and B = 20
Subtract 40 by 20 to get 20 (40 - 20 = 20)
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What is a linear equation in math?
- A linear equation only has one or two variables. No variable in a linear equation is raised to a power greater than 1 or used as the denominator of a fraction.
- When you find pairs of values that make a linear equation true and plot those pairs on a coordinate grid, all of the points lie on the same line.
- There are three major forms of linear equations: point-slope form, standard form, and slope-intercept form. We review all three in this article.
- Some of the examples of linear equations are 2x – 3 = 0, 2y = 8, m + 1 = 0, x/2 = 3, x + y = 2, 3x – y + z = 3.

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Answer:
It's
5.29 x 10^-5
Bcs the scientific notation number has to be around the numbers 1-9 and not more than that.
hope it helps :)