1) AB/AC = 1/2
(3x-4)/(2x+12) =1/2
2(3x-4) = 1(2x+12)
6x - 8 = 2x +12
4x = 20 And x = 5
2) Prove AC/BC 2/3 ===== (2x+12)/(7x-2) = 2/3;
Plug in x = 5:
(10+12)/(35-2) = 22/33. Simplify numerator & denominator by 11
(2)(11)/(3)(11) = 2/3
Answer: Option A.
Step-by-step explanation:
The angle ∠QST and the angle ∠QSR are supplementary.
If two angles are supplementary, means that the sum of both angles is 180 degrees.
Thenrefore

Solve for the angle ∠QSR and substitute the value of the angle ∠QST to find the value of the angle ∠QSR. Then, solving the equation, you get:
Then
is:

This matches with the option A.
It’s c I’m in college 100% c
-2 and -2 Two negatives added equal a positive.............. . . .. . . . . . .