A sled is being pulled across a floor by two ropes such that the angle between them is 40°. If the forces on the ropes are 100 pounds and 150 pounds, what is the resultant of the forces?

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.