You have to find the cos of angle A, so use the Pythagorean equation and trig laws to find the other side of the triangle created by angle A. 3^2 + x^2 = 5^2. x=4. This means cos(A) = 4/5). Make both cos (A) and cos (B) have equal denominators, and add. 148/185 + 60/185 = 208/185. This answer is correct, though it doesn’t appear to be any of the answers you wrote, so either those answers are wrong or you wrote something incorrectly in the problem.
Luci cuts a board that is 3/4 yard long into pieces that are
3/8. The pieces she cut can be solve by dividing the board by length of the new
board. The length of the ¾ yards long divided by the desired length of 3/8
yards which is equal to 2 pieces.
Answer:
X can be anything below 4
