Simplify the sum. (2u3 + 6u2 + 2) + (7u3 – 7u + 4) 6 – 7u + 6u2 + 9u3 –5u3 – 7u2 + 6u – 6 –5u3 + 6u2 – 7u + 6 9u3 + 6u2 – 7u + 6

In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles.

Asales representative from a local radio station is trying to convince the owner of a small fitness club to advertise on her station. the representative says that if the owner begins advertising on the station today, the club's total number of members will grow exponentially each month. she uses the given expression to model the number of club members, in hundreds, after advertising for t months.

Which of these angles are complementary? a. 45o and 45o b. 63o and 117o c. 45o and 135o d. 90o and 45o