hailey5129
29.07.2019 •
Mathematics
Angles a, b, and c represent the three angles of triangle abc. if the measure of angle a is (4x - 8)°, the measure of angle b is (5x+2)°, and the measure of angle c is (6x-9)°, what is the measure of angle b (in degrees)?
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Ответ:
4x - 8 + 5x + 2 + 6x - 9 = 180
15x - 15 = 180
15x = 180 + 15
15x = 195
x = 195/15
x = 13
B = 5x + 2
B = 5*13 + 2
B = 65 + 2
B = 67 <<<<< answer.
Ответ:
A and C are equivalent.
Step-by-step explanation:
When you simplify the expression, you find that only A and C simplify to make 6x-4