Mathematics, 19.09.2021 02:40 zitterkoph

Define the relation R on the set of integer numbers (ℤ) by xRy if xy > 0. Is R an equivalence relation? Justify.

Answers: 1

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 16:00

Asegment in the complex plane has a midpoint at 7 – 2i. if the segment has an endpoint at 11 – 3i, what is the other endpoint?

Answers: 1

Answer

Mathematics, 21.06.2019 17:30

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Answers: 1

Answer

Mathematics, 21.06.2019 18:50

Which of the following is a function? a.) {(-2, -4/5), (-1,-,,-1)} b.) {(-2,,1/,3/,1)} c.) {(-22)} d.) {(-21)}

Answers: 3

Answer

Mathematics, 22.06.2019 00:00

Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?

Answers: 3

Answer

You know the right answer?

Define the relation R on the set of integer numbers (ℤ) by xRy if xy > 0. Is R an equivalence rel...

Questions

Mathematics, 21.10.2020 23:01

the histogram to the right displays the height of 122 trees and Mr. Maciag's subdivision. He is very excited about autumn and the leaves changing colo...

Mathematics, 21.10.2020 23:01

Find p-value z= 2.28 for a two-tailed test for a proportion...