Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
Solve 1 equation for 1 variable. ( Put in y = or x = form)
Substitute this expression into the other equation and solve for the missing variable.
Substitute your answer into the first equation and solve.
Check the solution.
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
The y-value changes from 10 to 70 as the x-value changes from 0 to 10. That makes the slope (70 -10)/(10 -0) = 6, and the y-intercept = 10.
Selection A is the appropriate equation.
15 x 3= 45 so therefore 45 is the length hope that help!