Mathematics, 29.06.2019 13:30 ADKREBS
Store a: $25 for a 45 minute lesson store b: $30 for a 1 hour lesson store c: $45 for a 1.5 hour lesson store d: $80 for three 1 hour lessons julie wants to purchase swim lessons for her son. there are four different stores that offer swim lessons. based on the lowest cost per minute, which store has the best deal? a) store a b) store b c) store c d) store d
Answers: 2
Mathematics, 21.06.2019 17:20
Four airplanes carrying a total of 400 passengersarrive at the detroit airport. the airplanes carry, respectively,50, 80, 110, and 160 passengers.a) one of the 400 passengers is selected uniformly at random.let x denote the number of passengers that were on theairplane carrying the randomly selected passenger. find var(x)for x as given in the problemb) one of the 4 airplane drivers is also selected uniformly atrandom. let y denote the number of passengers on the chosen driver’s airplane. find var(y) for y as given in the problem
Answers: 3
Mathematics, 21.06.2019 17:30
Select the correct answer from the drop-down menu. subtracting 3xy^2 from 8xy^2 gives the same result as the expression. [tex]3xy ^{2} - 8xy ^{2} [/tex][tex] { - 7xy}^{2} - {2xy}^{2} [/tex][tex] {7xy}^{2} - {2xy}^{2} [/tex]
Answers: 3
Mathematics, 21.06.2019 18:30
Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?
Answers: 3
Mathematics, 22.06.2019 00:00
The weight of a full steel bead tire is approximately 800 grams, while a fighter wheel weighs only 700 grams. what is the weight of each tire in pounds?
Answers: 1
Store a: $25 for a 45 minute lesson store b: $30 for a 1 hour lesson store c: $45 for a 1.5 hour...
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