Math 150

Prof. Mary Beth Hampshire

Submitting Take Home Assignments

General Guidelines:

When submitting problems to be graded, adhere to the following guidelines:

  • Be organized and neat
  • Show all your work!
  • I would prefer that you show your work and answers on the assignment sheet. However, use loose leaf paper (no edges) if needed and staple or paper clip any additional pages to the assignment sheet
  • Indicate the number of the problem beside relevant work with your answer clearly indicated

You may work together on the assignment, but the write-up of the solutions should be your own (not a copy of someone else’s work!). You may also seek assistance from a tutor or the LAC, but again, the write-up should be your own. As a general rule of thumb, you should not submit something as your work on a take-home assignment unless you are prepared to explain the work and solution to your professor and/or the class. Because I do allow you to seek help on the take home assignments, I do expect the work to be correct and complete; the assignment will be graded accordingly.

Late Assignments:

Remember that assignments are due at the beginning of the class period on the due date specified. If an assignment is late for any reason, it must be submitted at the end of the semester.

Math 150

Take Home Assignment #1

Due: Beginning of class Wednesday, September 3

Each question is worth 4 points unless otherwise noted.

Simplify the following:

  1. a) -13x + 15y – 27x – 30y + 8b) 14x2 – 14x + 7 – (5x2 + 5x)
  1. 2a + {-6b – [3c + (-4b – 6c + a)]}
  1. Subtract 34x3y + 15xy – x + 3 from 57x4 – 13x3y + 7x – 15

Simplify the following. Show your result in its most simplified form. Your result should show only positive exponents.

  1. a) (-3x5y4)(-5xy2) b) r13r-4r-3

r-2r-5r0

  1. (-5y3z4)2(2yz5)-2

10(y4z)3(3y3z2)-1

Multiply. Show your result in its most simplified form.

  1. a) 3a2b3(ab – 2ab2 + b)b) (2x + 2)(5x + 3)
  1. a) (x2 – 1)2b) [(m – 2n) – (2m – n)][(2m + n) – (m – 2n)]
  1. a) x2y − xy2 + x2y3b) (abc2 − a2b2c) ÷ −abc

xy

  1. (6x2 + 4x3 + 1) ÷ (2x − 1)
  1. Application: A light-year is the distance that light travels in one year. Find the number of miles in a light-year if light travels 1.86 × 105 miles/second (miles per second). Reminder: Distance = rate × time. Your answer must include the appropriate units!