Mathematics, 27.09.2019 12:30, ColungaRosemary
Atrain traveling at 30 miles per hour reaches a tunnel which is 9 times as long as the train. if the train takes 2 minutes to completely clear the tunnel, how long is the train in miles? (1 mile= 5,280 feet)
Answers: 1
Mathematics, 21.06.2019 18:20, sweetbri7p5v6tn
Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions. a. x2 − 4x − 7 = 0b. 4r2 + 11r − 3 = 0c. 3m2 + 7 = 0d. t2 + 2t + 1 = 0
Answers: 1
Atrain traveling at 30 miles per hour reaches a tunnel which is 9 times as long as the train. if the...
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