Astudent ran out of time on a multiple choice exam and randomly guessed the answers for 2 problems. each problem had 5 answer choices -a, b,c, d,e and only one correct answer. what is the probability that she answered both of the problems correctly

Atriangle has side lengths of 15 inches and 30 inches. it also has angles that measure 45º and 20º. which of the following identifies the possible third angle of the triangle? a. 15 in., 65º b. 45 in., 65º c. 17 in., 115º d. 14 in., 115º

An eight-sided die, which may or may not be a fair die, has four colors on it; you have been tossing the die for an hour and have recorded the color rolled for each toss. what is the probability you will roll a brown on your next toss of the die? express your answer as a simplified fraction or a decimal rounded to four decimal places.

What is the lcm of 16 and 40 ? 24 and 40 ?