Mathematics, 12.07.2019 20:30 keyairareid7
9(10 points). suppose that a is a nonempty set, and f is a function that has a as its domain. let r be the relation on a consisting of all ordered pairs (z, y) such that f(x) = f(y). (a) show that r is an equivalence relation on a (b) what are the equivalence classes of r?
Answers: 3
Mathematics, 21.06.2019 22:00
The sum of the speeds of two trains is 720.2 mph. if the speed of the first train is 7.8 mph faster than the second train, find the speeds of each.
Answers: 1
Mathematics, 22.06.2019 00:00
Yvaries inversely as x. y =12 when x=5. find y when x=4
Answers: 2
Mathematics, 22.06.2019 00:50
Astudent is determining the influence of different types of food on the growth rate of spiders. she feeds one group of spiders two caterpillars twice a week. the other group received similarly-sized beetles twice a week. she records the amount of time required for individuals to reach sexual maturity. her hypothesis is that the spiders feeding on caterpillars will have a faster growth rate because caterpillars have a higher protein content compared to beetles. in this experiment, what is the dependent variable? spiders assigned to different feeding groups. time required to reach sexual maturity number of prey items fed twice a week. growth rates of each group.
Answers: 2
Mathematics, 22.06.2019 01:50
Order the equations from least to greatest based on the number of solutions to each equation.-4^x -1 = 3^(-x) – 2 -3x + 6 = 2^x+13^x – 3 = 2x - 2
Answers: 1
9(10 points). suppose that a is a nonempty set, and f is a function that has a as its domain. let r...
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