First question should be X=9
The second should be X=15
The answer is 45°
By determining the angles of triangle ACB (A=30°, B=45°, C=105° (total of 180°)) and knowing that angle 1 correlates to angle 4 ((1)°=(4)°), we can find angle 1, which is 45°, equal to angle 4.
The answer is 4x^2- 19x -30
The answer is D
Because 7/8 can't be greater then 1 1/2 cause your multiplying
132+89+14 =235
235 divided by 3 = 78.3
78.3 times 132 = 10335.6
78.3 times 89 = 6968.7
78.3 times 14 = 1096.2
so, the answer is 10335.6:6968.7:1096.2 (I think)
