Triangle B C D is shown. Line D B extends through point A to form exterior angle A B C. Angle B D C is 67 degrees and Angle C D B is 60 degrees. What is m∠ABC? m∠ABC = 60° m∠ABC = 67° m∠ABC = 120° m∠ABC = 127°

it's 127, just took test on edge.

Step-by-step explanation:

Triangle B C D is shown. Line D B extends through point A to form exterior angle A B C. Angle B D C is 67 degrees and Angle C D B is 60 degrees.

What is m∠ABC?

m∠ABC = 60°

m∠ABC = 67°

m∠ABC = 120°

m∠ABC = 127°

m<ABC = 127

answer: standard form is ax^2 + bx + c = 0

step-by-step explanation:

standard form is ax^2 + bx + c = 0

(2x + 1)(x - 2) = 0

distribute to get into standard form

2x^2 - 4x + x - 2 = 0

2x^2 - 3x - 2 = 0

a = 2, b= -3, c = -2

a is your answer