Answer:
x = -8 and BDC is 68 degrees.
Step-by-step explanation:
Combine -7x+12 and -8x+48 to get -15x+60. Since BDA is a straight angle put the above equation to get -15x+60=180. Subtract 60 from both sides to get -15x=120. Divide -15 both sides to get -8 as your x value. Plug in -8 to BDC, since both negatives are being multiplied, it would turn to a positive number which is 56, add 12 to get 68 as your final result for BDC.
<span>A coefficient in the expression is a numerical or constant quantity that is placed before and multiplying the variable in an algebraic expression, for example in expression 5x + 4; 5 is the coefficient.
So in the given expression 3x/13 + 4. 3 / 13 is the coefficient of x, as 3 / 13 is multiplying with x.</span>
Answer:
A, C, C
Step-by-step explanation:
Idk about the last one, but the rest are right.
