brianamcorchadp
09.06.2020 •
Mathematics
A person must be at least 18 years old to vote. The inequality a z 18 represents the possible ages a in years at which a person can vote. Determine 91.5 are solutions of the inequality, whether a = 18, a = 17, and a = and tell what the solutions mean.
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Ответ:
Step-by-step explanation:
As two sides of triangle are 21, it is isosceles triangle. So, angles opposite to equal sides are equal.
x + x + 38 = 180 {sum of all angles of a triangle }
2x + 38 = 180
2x = 180 - 38
2x = 142
x = 142/2
x = 71