Suppose a triangle has sides a, b, and c, and that a2 + b2 < c2. Let e be the measure of the angle opposite the side of length c. Which of the following
must be true? Check all that apply.
A. a2 + b2 - C2 = 2abcose
B. cose < 0
C. cose > 0
O D. The triangle is not a right triangle.

What term best describes a line and a point that lie in the same plane? a. congruent b. coplanar c. collinear d. equal

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.

Hurry which expression is equivalent to 3√x^5y?