PLEASE HELP! I ONLY HAVE ABOUT 10 MINUTES LEFT! :( 30 POINTS AVAILABLE! The diagram shows the cross-section of a building. CD is a ledge half way up. Amy is standing at point A looking at the building. She measures AB = 100 metres, ∠CAB = 31° and ∠EAB = 42°. Calculate the length of CD.

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it could 14.28 but if its not that one then it has to be the 17 one. hope this ! : )

step-by-step explanation:

there are many solutions.

step-by-step explanation:

step 1: simplify both sides of the equation.

4x+6=4x^2+10x−4

step 2: subtract 4x^2+10x-4 from both sides.

4x+6−(4x^2+10x−4)=4x^2+10x−4−(4x^2+10x−4)

−4x^2−6x+10=0

step 3: factor left side of equation.

−2(2x+5)(x−1)=0

step 4: set factors equal to 0.

x=-5/2 or x=1

1,918

step-by-step explanation: