420. Mark is constructing a walkway around his inground pool. The pool is 20 ft by 40 ft and the walloway is intended to be wide. Wher is the area of the walkway? a. 224 ft b, 416 fe c. 256 ft? d. 544 Ft​

Which statement explains how you could use coordinate geometry to prove that quadrilateral abcd is a parallelogram? -5 -4 -3 -2 -1 t 1 2 3 4 prove that all sides are congruent and have slopes that are opposite reciprocals prove that segments ad and ab are congruent and parallel prove that opposite sides are congruent and have equal slopes prove that segments bc and cd are congruent and parallel

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8