The beam of a lighthouse is visible for a distance of 15 mi. to the nearest square mile, what is the area covered by the beam as it sweeps in an arc of 270°?

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.

Angle a and angle b are both supplementary angles. what must be true about the angles?

Morgan is dividing 2 by 18. what will keep repeating in the quotient?