2. Carrie listened to the latest country album 3 times in a row in 2.75 hours. Write an equation to find the length of the album. a. 3t=2.75
b. 2.75(3)=t
c. 2.75t=3
d. 2.75(3)(t)

HELP ME PLEASE

Evaluate cos2θ for cosθ = square root of 3/2

Ineed to know the answer to this algebra question.

Given: ae ≅ ce ; de ≅ be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that △aeb ≅ △ced, we can show that △ ≅ △ceb by. so, ∠cad ≅ ∠ by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.