What are the lengths of the legs of a right triangle in which one acute angle measures 19° and the hypotenuse Is 15 units long? OA
9 units, 12 units
OB.
11 units, 10.2 units
OC 4.9 units, 15.8 units
OD. 4.9 units, 14.2 units
O E
5.2 units, 14.1 units

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

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

What is this inequality notation? t is less then or equal to 2