{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Quiz1solutions - MAC1105 Quiz#1 In the top-right corner of...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: MAC1105: Quiz #1 June 29, 2010 In the top-right corner of a clean sheet of paper, write your name, UFID, and section number. Please use a pen with blue or black ink. When you are nished, FOLD your paper in half lengthwise and write your name on the back. 1. Recall that integers, N denotes the natural numbers, W the whole numbers, Z the Q the rational numbers, and R the real numbers. (a) Find Z N. RQ. Since every natural number is also an integer, the inter- section is just (b) Find N, the natural numbers. Since every rational number is also a real number, taking the union adds nothing new, so the answer is (c) True or false: R, the natural numbers. WN is not true since W contains 0, but W N Z Q R. N does not. False. 2. Describe the phrase all real numbers greater than 0 but no more than 6.5 using: (a) Set-builder notation. (b) Interval notation. {x 0 < x 6.5} (0, 6.5] 3. Use the given property to rewrite the following expressions with equivalent forms: (a) Commutative property of addition: xy + 5z = 5z + xy 5(ab) = (5a)b, though some (b) Associative property of multiplication: other answers are also correct. 4. True or false: Exams 1,2, and 3 are from 7-8:30 PM, and the nal is from 7-9 PM. True. 1 ...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern