Use the matrix tool to solve the system of equations. choose the correct ordered pair.5x - 4y = 28 7x + 5y = 18
a.(4, -2)
b.(3, -1)
, 4)
, 3)

Given the following statements, which is the best

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

Asailor is looking at a kite. if he is looking at the kite at an angle of elevation of 36and the distance from the boat to the point where the kite is directly overhead is 40 feet, how high is the kite?