Friday, February 26, 2016

Friday, February 26


Essential Question
Is the quotient of two integers positive, negative, or zero? How can you tell?
Objective
  • I will divide integers.
  • I will solve real-world problems.
Activity
  • Start Thinking and Warm-up
  • 11.5 Activities 1-4
  • 11.5 Lesson (examples 1-4)
  • Pages 506-507 #16-30 even, 34-36
Homework
Any missing work

27 comments:

  1. false because negative times negative is positive, and positive times negative is negative.

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  2. The statement is false because two negatives equal a positive. A negative and a positive equal a negative. Two numbers with the same sign equal a negative and two numbers with different sign equal a positive number. This makes the ending number a negative.

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  3. False: The product of three negative integers is negative because the first two integers equal a positive integer, then a positive number times a negative integer equal a negative number.

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  4. The product of three negative numbers is false because the there will be a product (from two of the numbers) of a positive then the third will make it a negative.

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  5. The statement is false. For example, -1(-1)(-1)=-1. A negative times another negative is a positive times another negative is a negative. That means if you multiply three negatives, it equals a negative.

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  6. I believe the statement isn't true. This is because the first two negatives will equal a positive because the negatives are the same sign. However, when you multiply the new positive number with the negative number, because positive and negative signs are different, the answer is negative. Therefore, the product of three negative numbers isn't positive.

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  7. The statement is false. I know this because the first two negative numbers that are multiplied equal a positive. Then a positive times a negative is a negative. This is why the statement is false.

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  8. The statement is false. The statement is false because if you multiply two negative integers it becomes a positive. Then if you multiply that answer by a negative integer the positive integer becomes a negative integer, so the statement is false.

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  9. False. This is false because if you have 2 negative numbers that is positive. Then if you have the positive number and the 3rd negative number the final answer is a negative number.

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  10. The statement "The product of three negative numbers is positive." is false. The statement is false because the product of the first two numbers will be positive and therefore the product of the positive and the third negative number will be negative.

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  11. The statement, "The product of three negative numbers is positive" is false. This is because the rule "a negative times a negative equals a positive" only works for two integers. So, you would multiply the first two negative integers to get a positive integer but then you would multiply this positive integer by the remaining negative integer. These two integers have different signs so the product will be negative, not positive.

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  12. This statement is false because when you multiply the first two negative numbers the product of those is positive because two negatives equal a positive.Then you do that product times the last negative number and a positive plus a negative is negative. So the statement is false because the answer doesn't end positive.

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  13. The statement is false. It is false because the first two negative numbers make it a positive number but then multipling it by again by a negative number makes it negative again.

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  14. The statement is false. The state is false because once you multiply two negative integers its a positive but, when there is three negative integers the last integer makes the positive number negative.

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  15. The product of three negative integers is a negative number. When you multiply the two first negative numbers, you will get a positive product. Then when you multiply the positive product with the other negative multiplier, you will get a negative product. Lets use an example, pretend we have the equation
    -2*(-3)*(-4). For the first two terms, -2*-3, we will get the product of +6. Now lets multiply 6*-4, we will get a product of -24.

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  16. The statement is false because when you multiply two negatives you get a positive number, because it was the same sign. Then you multiply the negative and the positive number it would be a negative, because the signs would be different then.

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  17. The statement,"The product of three negative numbers is positive." is false. This is because after you multiply the first two negative numbers, you get a positive number. After you have the positive value (the first two negative integers' product), you will have to multiply it by the last negative number. Since the signs are different, that means that your final product will be a negative number. No the following statement,"The product of three negative numbers is positive." is not true. In other words, it is false.

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  18. The product of three negative numbers is not positive because if three negative numbers are multiplied, the product is negative. This is because you multiply the first two numbers which are both negative and you get a positive because they have the same signs. Then you multiply the positive by the last number which is negative, and you get a negative product because the signs are different.

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  19. This statement is false. If you have three negative numbers, you multiply the first two together first. The product of two negative numbers is always positive, so after multiplying the first two numbers, you will have a positive times a negative, which is always a negative product.

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  20. The statement is false because, when you add two negative numbers it equals a positive number. Then, you add the third negative number to the positive number you will get a negative answer.

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  21. The statement is false. I know that it is false because I plugged in 3 negative numbers and multiplied them. For example, if the problem was -3x(-3)x(-3). You have to multiply -3x(-3) which equals a positive 9. Then you multiply 9x(-3) which equals a negative 27. The statement states that "The product of three positive numbers is positive." As we can tell, this statement cannot be true, so it is false.

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  22. The statement is false. I know that because when you add 3 negative numbers it would equal a negative, not a positive. When you add 2 negative numbers it equals a positive, then when you add another negative it equals a negative. For example, 2 x 2 x 2 = -8. The first 2 x 2 equals 4, but when you add another 2 it would change to -8.

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  23. The product of three negative numbers is not a positive number. This is because when you multiply two negative integers you get a positive number. Except when you multiply that product times the third negative integer you get a negative number.

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  24. the statement is false because I multiplied -2, -8, and -4 and my answer was an negative integer.

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  25. The statement is false. It's false because, when you multiply 2 negative integers you get a positive integer and when you multiply the positive integer by the negative integer you get a negative product. This shows that the product is negative and the statement is false.

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  26. This statement is false because if you multiply two negative numbers, the product is positive. If you multiply the positive integer with the negative integer, the product will be negative.

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  27. The statement is false because I know that multiplying 2 numbers with the same sign is positive. So if you follow order of operations, then positive times negative is a negative because they have different signs.

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