Answer:
x=20
Step-by-step explanation:
First, find LJ
Angle L = 60 (180 - 30 - 90)
The cosine of an angle is equal to the ratio of the adjacent side to the hypotenuse.
cos(L)=adj/hyp
cos(60)=LJ/40√2
LJ = cos(60)*40√2
LJ = 20√2
Now you can use LJ to find x. You also know the value of each angle, 45
x=20√2⋅cos(45)
x=20
Okay so they were both 9, nine years ago because 9 plus 9 is 18.
They would both be 18 in the present age im pretty sure?
If it is compounded annually, this will be 850(1.014)^5 which equals $911.19
4 dollars and seventy six cents will be the total
