Astudent randomly guesses at 10 multiple choice questions. each question has four possible answers with only one being correct, and each is independent of every other question a) find the probability that the student guesses exactly 4 correct. b) find the probability of guessing less than 3 correctly c) find the probability of guessing more than 8 correctly d) find the probability of guessing between 4 and 6 inclusively

In which source of water would a wave travel the fastest? o ice o cold o room temperature o hot mark this and return save and exit next

Acompany manufactures three types of cabinets. it makes 110 cabinets each week. in the first week, the sum of the number of type-1 cabinets and twice the number of type-2 cabinets produced was 10 more than the number of type-3 cabinets produced. the next week, the number of type-1 cabinets produced was three times more than in the first week, no type-2 cabinets were produced, and the number of type-3 cabinets produced was the same as in the previous week.

Simplify the algebraic expression 8y-2(y+4)