Week 13:

Due Monday, November 14: Hand in: Problem 2 a, b on page 561, describe the process you use to determine if the numbers are prime or how they factor and explain how you know "when to stop" in checking if the number is prime. Also hand in:

1) Elena is factoring 11,849 into products of prime numbers. She checked that 2, 3, 5, 7, 11, and 13 do not divide 11,849 and she found that 11,849 = 17 x 697. In order to factor 697, should Elena start by dividing 697 by 2, 3, 5, 7, etc., or can Elena save herself some work? Explain. Then factor 11,849 into a product of prime numbers (no explanation needed).
2) Factor 224,939 and 4,519,229 into products of prime numbers (no explanation needed but show work, such as factor trees). Then show how to use the prime factorizations of the two numbers to find the GCF and LCM of the numbers. Explain your reasoning.

Due Wednesday, November 16: TEST on sections 13.3 - 13.6, including material not in the book, such as the quiz problems and deriving the equation of a line via similar triangles created by lines crossing parallel lines, and sections 12. 1 - 12.3, including material discussed in class that is not in the book, such as the "slide method" for finding GCF and LCM (not on this test, but study for final exam: finding GCF and LCM using prime factorizations).

Due Friday, November 18: nothing due

Week 14:

Due Monday, November 21: Read section 12.4 and do the practice problems. Hand in problems 4 and 5 on page 565.

Wednesday, November 23: Thanksgiving break

Friday, November 25: Thanksgiving break