If BD = 12x + 36
And BD = BC +CD = 3 + 1 = 4
BC = (12x + 36)/4 x 3
= 12(x+ 3) /4 x3
= 3(x+3) x 3
= 9x + 27
Likewise,
FE = 12(x + 3) /3 x 1
= 4x + 12
Area = 1/2 x (BC + FE) x DE
= 1/2 x (9x + 27 + 4x + 12)x (x+1)
= 1/2 x (13x + 39) x (x +1)
= 1/2 x 13x2 + 52x + 39
Hope this helps,
Regards,
ArmyCee:)
Yea it is..................
Answer:
left one is a function that is y=x
right is not a function
Step-by-step explanation:
the input is the same as the output no transformation is happening.
it cannot be a function because an x value of 8 cannot give a y value of 35 and 21 because it x values can't have multiple y functions in a function.
1)
x+ x -3 + 110 + 130 = 360
2x + 220 = 360
2x = 140
x = 70
------------------------------
2)
Sum of interior angles = 180(6 - 2) = 180(4) = 720
2(x) + 2(x+22) +2(90) = 720
2x + 2x + 44 + 180 = 720
4x + 224 = 720
4x = 496
x = 124
--------------------
3)
Sum of interior angles = 180(5 - 2) = 180(3) = 540
Interior angle = 540 / 5 = 108
x = 180 - 108
x = 72
