All sides of a triangle add up to 180 degrees. Since we know one angle is 93 degrees, we know that the top part is going to equal 180 degrees. We know that two of those measurements are 93 and 45, so we add those together to get 138. We subtract this from 180 to find the missing angle, which is 42 degrees. So, the left side of the triangle is equivalent to 45 degrees and the right side (x) is 42 degrees. 93 + 45 + 42 = 180. If it was asking for the measurements of the supplementary angles to the bottom angles of the triangle, then those would be (for 45) 135 and (for 42) 138, that way both angles and their supplements add up to 180 each. I hope this helps and that it’s right
(a - 2b) • (2a - b) is how you factor this using FOIL
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Answer:
B
Step-by-step explanation:
Answer:
20, -20
Step-by-step explanation:
I assume you mean |x| + 31 = 51?
that means |x| + 31 - 31 = 51 - 31
==> |x| = 20
because this is absolute value
so x = 20 or -20
