Answer:
87
Step-by-step explanation:
sorry if im wrong
AB = CB Given
D is the midpoint of AC given
AD= CD Definition of midpoint
Angle BAD = Angle BCD base angle theorem
Triangle ABD = Triangle CBD SAS
Be sure to use your symbols for congruent, etc. I couldn't type those in
0.4%, turn it into a decimal, which is 0.004
0.004*100= 0.4
3x² <span>+ 20x - 7 =
</span>3x² + 21x - x - 7 =
3x(x+7) - (x+7) =
(3x-1)(x+7)
3x-1 = 0 or x+7 = 0
x = -1/3 x=-7
Answer: -7, -1/3.
