Radioactive mass A emits particles at a mean rate of 19 per minute, and radioactive mass B emits particles at a mean rate of 24 per minute. a. What is the probability that fewer than 200 particles are emitted by both masses together in a five minute time period?
b. What is the probability that mass B emits more particles than mass A in a two-minute time period?

An equation representing lyle’s hedge-trimming business is a = 12n - 300 where a is the amount of profit or loss in dollars and n is the number of hedges trimmed. how would the graph of lyle’s business change if the equation a = 10n - 300 represented his business? the graph would be flatter. the graph would be steeper. the graph would start closer to the origin. the graph would start lower on the y-axis.

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?