5. Which expression is equivalent to 4x2 –16 A. x2 – 12
B. (2x + 4)(2x – 4)
C. 2x + 2x – 8 – 8
D. (2x – 4)(2x – 4)

In what organelle does photosynthesis take place?

In the following diagram it is given that dec,ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2

What is the best estimate of the length of a football