Mathematics, 12.11.2019 10:31, lisbethtsu5309

# The class registration of 120 students are analyzed. it is found that 30 of the students don't take any of applied mechanics, chemistry, or computers. 15 of them take only applied mechanics.25 of them take chemistry and computers but not applied mechanics.20 of them take applied mechanics and computers but not chemistry.10 of them take all three of applied mechanics, chemistry and computers. a total of 45 of them take chemistry. 5 of them take only chemistry.

a) how many of the students take applied mechanics and chemistry but not computers?

b) how many of the students take only computers?

c) what is the total number of students taking computers?

d) if a student is chosen at random from those who take neither chemistry nor computers, what is the probability that he or she doesn't take applied mechanics either?

e) if one of the students who take at least two of the three courses is chosen at random, what is the probability that he or she takes all the three courses?

Answers: 2

Mathematics, 21.06.2019 18:40, marleacorey

Apilot knows that the wind direction and velocity are 045° and 40km/h respectively. in order reach his destination he sets off on a course of 330° with airspeed 300km/h. find his track and ground speed?

Answers: 2

Mathematics, 21.06.2019 20:20, oscarmasinde44

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.

Answers: 1

Mathematics, 21.06.2019 20:20, redbeast677

The polynomial 10x3 + 35x2 - 4x - 14 is factored by grouping. 10x3 + 35x2 - 4x - 14 5x )-20 what is the common factor that is missing from both sets of parentheses?

Answers: 2

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