Well, one divides by 7, actually, because the total number of tickets is 6+1 times the # of discount tickets. That is, 1,456/7. You don't need to actually perform this division.
Cos2x = (cosx)^2-(sinx)^2 so if you have the minus before you have to inverse sign: (sinx)^2-(cosx)^2= -cos2x
Answer:
x = 60
Step-by-step explanation:
The sum of the angles of a triangle is 180
95+25 +x = 180
120 +x = 180
Subtract 120 from each side
120+x-120 = 180-120
x = 60
x=4
4x-(12<span>÷3)+2x=20
4x-(4)+2x=20
4x4-4+2x4=20
16-4+8=20
12+8=20</span>
