Answer:
BC is just 3d+7??
Step-by-step explanation:
Answer: 20
1) simplify 2^2 to 4
4*5
2) simplify
20
Just for future reference always put ^ for exponents. The answer is y-6 though.
(y-4)(y-6) create that trinomial. You can prove that by using the FOIL algorithm
This is a square, and so all the sides will be the same measurements. Note that you are given an area, so you'll have to root the total area to get a side.
√400 = 20
One side's measurements is 20 in
hope this helps
