"SAS" is how you find the angle in between. Use the law of cosines to calculate the unknown side, then use the law of sines to find the simuliar of the other two angles, then use three angles add to 180 degrees to find the last angle.
Answer:
50%
Step-by-step explanation:
increase = 120 - 80 = 40 which is 50 % of 80
Remember to make the polynomials to equal zero, one or the other polynomial must equal zero. So...
2x-3 = 0
2x= 3
x=3/2
and
4x+5 = 0
4x = -5
x = -5/4
So the answers are x=3/2 and x = -5/4
Hope this helps!
The answer is 60. You plus 15 into x
