Mathematics, 04.02.2021 21:40 AM28
Use the quadratic formula to solve x ^ 2 + 8x + 9 equals 0
what are the solutions to the equation?
Round irrational solutions to the nearest tenth.
Answers: 2
Mathematics, 21.06.2019 21:00, Mathcat444
The zoo collects $9.60 for every 24 tickets sold. how much will be collected for 400 tickets?
Answers: 2
Mathematics, 21.06.2019 21:30, jerenasmith77
Are the corresponding angles congruent? explain why or why not.
Answers: 2
Mathematics, 21.06.2019 23:00, cakecake15
Solve the problem by making up an equation. a man could arrive on time for an appointment if he drove the car at 40 mph; however, since he left the house 15 minutes late, he drove the car at 50 mph and arrive 3 minutes early for the appointment. how far from his house was his appointment?
Answers: 1
Mathematics, 21.06.2019 23:30, bbby2
Aprisoner is trapped in a cell containing three doors. the first door leads to a tunnel that returns him to his cell after two days of travel. the second leads to a tunnel that returns him to his cell after three days of travel. the third door leads immediately to freedom. (a) assuming that the prisoner will always select doors 1, 2 and 3 with probabili- ties 0.5,0.3,0.2 (respectively), what is the expected number of days until he reaches freedom? (b) assuming that the prisoner is always equally likely to choose among those doors that he has not used, what is the expected number of days until he reaches freedom? (in this version, if the prisoner initially tries door 1, for example, then when he returns to the cell, he will now select only from doors 2 and 3.) (c) for parts (a) and (b), find the variance of the number of days until the prisoner reaches freedom. hint for part (b): define ni to be the number of additional days the prisoner spends after initially choosing door i and returning to his cell.
Answers: 1
Use the quadratic formula to solve x ^ 2 + 8x + 9 equals 0
what are the solutions to the equation?...
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