Suppose a triangle has sides a, b, and c, and let e be the angle opposite the side of length b. If cose > 0, what must be true?
A. a2 + b2 = c2
B. a2 + b2 > 2
c. a2 + 2 D. a2 + 2 > b2

Atriangle has side lengths of 15 inches and 30 inches. it also has angles that measure 45º and 20º. which of the following identifies the possible third angle of the triangle? a. 15 in., 65º b. 45 in., 65º c. 17 in., 115º d. 14 in., 115º

The factorization of 8x3 -125 is (2x-5)(jx2 +kx+25)

Determine whether the graphs of y=8x+5 and -y=8x-5 are parallel, perpendicular, coincident, or none of these. a. coincident b. parallel c. perpendicular d. none of these