285.
Divide 9690 by 34 to find the unit number or cars inspected.
−3 (x+5 ) = 9.
-3(x) + -3(5) = 9
-3x -15 = 9
+15 +15
-3x = 24
/-3 -3
x = -8 Hope this helps!
The incorrect answer is -10 1/2
So your answer will be
Answer = -10 1/2
First you need the size of an angle QPR = B = 180° - 123°
Lenght of QP = 10cm
QR = x
QP = r
x² = r² + r² - 2r² × cosB
Go up by 2 each time. answer is 20