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1. Quiz 19

   1. The following two equations describe the height of a missile above (or below) the surface of the ocean, when it is launched from a submarine:

   1. $ y = -t^2 + 12t - 20 $
   2. $ y = -5t^2 + 30t - 20$

   2. After how many seconds will each missile break through the surface of the water?
   3. After ...

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2. Homework 19

   1. Section 10.2 (page 710): # 1, 11, 13, 15, 17,19,21,39

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3. Homework 18

   1. Section 5.2: #1, 3, 31. Section 5.3: #29, 31, 39. Section 5.7: #1, 3, 15, 39, 47, 51, 53

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4. Quiz 18

   Determine what values of x will make y equal to zero:

   1. $y = x^2 + 8x + 16$
   2. $y = x^2 - 4x - 32$
   3. $y = x^2 - 7x + 12$
   4. $y = 2x^3 -10x^2 - 28x$

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5. Quiz 17

   Turn the following into equations:

   1. A runner starts running toward Westerly from Providence (60 miles away), going a steady 10 miles per hour.  Make an equation that gives their distance from Providence.
   2. A number is 12 more than the product of the number and -5.  What is the number?
   3. A ...

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6. Homework 17

   1. From the book:

      Section 4.5: #9,11,33,35,39,57,59,113 Section 4.6: #1,3,5,37,43,53,75,87,144 Section 5.1: #1,3,5,7,9,11,13,35,43

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7. Homework 16

   1. From the book: Section 4.4(page 277), # 9,13,15,17, 19, 31,33,35,37,39,41,43, 45, 51, 55,57, 59, 93

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8. Homework 13

   1. From the book:

   Section 4.1 (page 252), # 1, 3,5,7,11,13,31,39,43,45,55,59, 63, 65, 67,79, 81, 99, 101, 129, 137

   Section 4.2 (page 259), # 1, 3,5,7, 9, 19,23, 27, 31, 35, 39, 45, 55,57, 131,133 ...

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9. Quiz 16

   1. Simplify the following expressions:
      1. $(\frac{7}{9})^0$
      2. $y^{-2}y^{-5}$
      3. $(-xy^2)^{-4}$
      4. $(y^3y^4)^4$
      5. $y^2y^5$
   2. Bacteria grow by doubling every 10 minutes. Suppose you are infected by one bacteria, and allow it to grow for 4 hours. Then you begin frantically washing and ...

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10. Quiz 12

    Write equations representing each of the following (don't solve):

    1. Three more than twice a number is 100
    2. A number multiplied by itself is 16 less than 52
    3. The product of two numbers is 5 more than their sum
    4. Find the next number in the sequence: 1, 4, 7, 10, ...

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11. Homework 11

    1. From the book: Do Project #1, on page 235 of the book. You will submit this assignment electronically (as a Word document or PDF) on Friday the 18th, by midnight. You should do the initial graphs by hand as instructed in the problem -- take clear pictures of these graphs and ...

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12. Quiz 11

    1. The sum of two numbers is -18. One number is 2 greater than three times the other. Turn both sentences into equations, then find the two numbers.

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13. Homework 9

    1. From the book:Section 3.6, # 1,3,5,11,13, 23,27,37,47,49,62,63
    2. Notes: This assignment is due in class on Monday the 14th or Tuesday the 15th

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14. Quiz 10

    1. A bicyclist goes at a steady 25 miles per hour, leaving 1 hour after a runner, who maintains a steady 14 miles per hour. Graph the two, find the equations that describe their motion, and solve to determine at what time the bicyclist will catch the runner
    2. Graph this equation ...

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15. Homework 8

    1. A train leaves Chicago moving 110 miles per hour at noon, at the same time that another train leaves New York at 80 miles per hour. Assuming that both trains continue on the same track at the same speed until they crash into each other, at what time and at ...

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16. Quiz 8

    1. If Santa Claus delivers presents to one child per minute, how many hours would it take him to get to every child on earth? Make reasonable estimates for any numbers you need, write them down clearly, and show all your work -- no calculators, phones, tablets, etc. allowed (but feel free ...

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17. Homework 7

    1. From the book: Section 3.3 (pages 192-195): # 1, 3, 5, 7, 15, 23, 27, 29, 35, 59, 65
    2. Notes: Feel free to use a graphing calculator or program to help you, but please copy over or print any graphs that you use.

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18. Quiz 6

    1. If you have an order for 84 cakes, and one employee who can make 3 per hour, and a second who can make 4 per hour, how many hours will it take to fill the order?

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19. Homework 5

    1. From the book:

       Section 3.1(p. 165-168): #1, 3, 5, 7, 9, 11, 21, 23, 27, 55, 57

       Section 3.2(p. 180-182): #1, 3, 23, 31, 33, 35, 39, 63

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