Answer:
18. x= 15
19. x = 32.5
20. 82.097
Step-by-step explanation:
because any trianglw with 65 degrees the other abgle will be equal making the side equal as well
180-115= you know
X=-2y+6
-2y+6+y=10
-y+6=10
-y=4
y=-4
X=14
2(14) + 2(-4)=28- -8=28+8=36
Answer is 36 I think
Let the width be w.
The length is 5 yd less than twice the width, so the length is 2w - 5.
The area is LW, and the area is 52 yd^2
LW = A
(2w - 5)(w) = 52
2w^2 - 5w = 52
2w^2 - 5w - 52 = 0
2w^2 - 13w + 8w - 52 = 0
w(2w - 13) + 4(2w - 13) = 0
(2w - 13)(w + 4) = 0
2w - 13 = 0 or w + 4 = 0
2w = 13 or w = -4
w = 6.5 or w = -4
Since a width cannot be a negative number, discard the solution w = -4.
The width is 6.5 yd.
The length is 2w - 5 = 2(6.5) - 5 = 13 - 8 = 8
The length is 8 yd.
The length is 8 yd, and the width is 6.5 yd.
5x+60=7+5x
0=-53, which is untrue, so there are 0 solutions
