Find the exact value of sin 30°
sin 30°=
(Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)

3.4a=57.8 what is the the value of a

Aremote-controlled boat can travel at 4 feet per second in calm water. the boat traveled 48 feet with the current, and then it traveled 16 feet against the current in the same amount of time. how fast is the current?

If two parallel lines are cut by a transversal, interior angles on the same side of the transversal are supplementary. a. always b. sometimes c. never