Mathematics, 18.04.2020 04:31 Seventhhokage465
For each of the following functions, determine if they are injective. Also determine if theyare surjective. Also determine if they are bijective. No justification needed. The firstthree have already been filled out for you, as an example. Also, recall interval notation:[a, b] ={x∈R:a≤xandx≤b}. You should be able to come up with a similar definitionfor (a, b) and (a, b] and [a, b).1.f:R→R, f(x) =x2.f:R≥0→R, f(x) =x+ 13.f:R≥0→R, f(x) = cos(x)4.f:R→R, f(x) =ex5.f:R→R, f(x) =2xifx≥0−x2ifx <0.6.f:R→(0,[infinity]), f(x) =ex7.f:R≥0→R≥0, f(x) =x48.f:{−1,2,−3}→{1,4,9}, f(x) =x29.f:R≥0→[−1,1], f(x) = cos(x)10.f: [0,π]→[−1,1], f(x) = cos(x)11.f:R≥0→[−1,1], f(x) = 012.f: US Citizens→Z, f(x) = the SSN ofx.13.f: US Zip Codes→US States, f(x) = The state thatxbelongs to.
Answers: 3
Mathematics, 21.06.2019 17:00
Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?
Answers: 1
Mathematics, 22.06.2019 01:00
The dance committee of pine bluff middle school earns $72 from a bake sale and will earn $4 for each ticket they sell to the spring fling dance. the dance will cost $400 write an inequality to determine the number, t of tickets the committee could sell to have money left over after they pay for this year's dance. what is the solution set of the inequality?
Answers: 2
For each of the following functions, determine if they are injective. Also determine if theyare surj...
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