Answer:
Step-by-step explanation:
3 sinθ=3 cos 2θ
sin θ=cos 2θ
sinθ=1-2sin² θ
2sin²θ+sin θ-1=0
2sin²θ+2sinθ-sinθ-1=0
2sin θ(sin θ+1)-1(sin θ+1)=0
(sin θ+1)(2 sin θ-1)=0
sin θ=-1=-sin 90=sin (180+90)
θ=270
or sin θ=1/2=sin 30,sin (180-30)
θ=30,150
solution set is {30,150,270}
25,000 - 8,500 = 16,500
16,500 :1250 = 13 years and 2 months
I believe the answer is C or $2036.12 because sh earns 2.37% a month, and there is 12 months in a year so you have to multiply that percentage by 12 to make it one year. Then it asked for 8 years, so since you know how much percentage there is for one year, you just multiply by 8. Then you multiply your answer by 6200, and add that result to 6200, which is how you get c or 2036.12.
The answers are:
X=6
EF=34
FG=25
The answer is B.
I tried putting 9 for a and 7 for B. cos(9-7)+cos(9+7) = 2cos(9)cos(7)
