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post #1 of 82 (permalink) Old Jun 16th, 2005, 09:50 PM Thread Starter
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More math homework help!!

Please help me solve this problems. SHOW YOUR WORK!!!

22. Select the equation of the line that is parallel to 3x + 9 = 0.

a) 3y + 9 = 0
b) y = 8
c) x = -20
d) 2x + y = 0

28. Select the pair of lines that intersect.

a) y + 9 = 0, y = 8
b) 2x - y = 6, y = 2x + 3.8
c) x = 0, -7 = x
d) y = -x + 3, y = x + 3

34. The reciprocal of -7 2/3 is:

a) -3/23
b) -7 2/3
c) 3/23
d) 7 2/3

43. Evaluate (-2) to the power : -3

a) 6
b) 1/8
c) -1/8
d) -8

47. Evaluate (-2/5) to the power : -3

a) 125/8
b) -125/8
c) -2/5
d) 8/125

64. Which of the following is NOT a solution of the equation y = -5x + 7?

a) x=6, y=1
b) x=1, y=2
c) x=0, y=7
d) x=2, y=-3

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post #2 of 82 (permalink) Old Jun 16th, 2005, 09:56 PM
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You should be researching and looking into books, not asking for answers!
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post #3 of 82 (permalink) Old Jun 16th, 2005, 09:57 PM Thread Starter
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68. Solve a + 3/5 = 2

a) a=5
b) a=7
c) a=10
d) a=2

73. Which equation represents a line with slope 5 and a y-intercept of -2?

a) 5x - y - 2 = 0
b) -5x + 2 = y
c) 5y + 2 = x
d) 5x + y + 2 = 0

75. A pair of lines is defined by the two equations y = 4x - 3 and y = x + 6. The point of intersection of the two lines is:

a) (3, 9)
b) (1, 1)
c) (0, 0)
d) (-2, 4)

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post #4 of 82 (permalink) Old Jun 16th, 2005, 09:58 PM Thread Starter
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Quote:
Originally Posted by bis2806
You should be researching and looking into books, not asking for answers!
It's due tomorrow, and I need help.

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post #5 of 82 (permalink) Old Jun 16th, 2005, 10:00 PM
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Well you should have done them like EARLY. These questions involve using your head and they are not hard at all.
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post #6 of 82 (permalink) Old Jun 16th, 2005, 10:04 PM Thread Starter
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Quote:
Originally Posted by bis2806
Well you should have done them like EARLY. These questions involve using your head and they are not hard at all.
My studies have been very agonizing the past two weeks. This assignment was the last thing on my mind. I would have done it earlier if I had free time.

If it's so easy, help a fellow human out!

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post #7 of 82 (permalink) Old Jun 16th, 2005, 10:10 PM
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post #8 of 82 (permalink) Old Jun 16th, 2005, 10:13 PM Thread Starter
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Quote:
Originally Posted by GoDominique
If you gave me the answer, with the correct calculations, I would better understand what I'm not understanding.

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post #9 of 82 (permalink) Old Jun 16th, 2005, 10:14 PM
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careful ... people like me will give you wrong answers to teach you a lesson about asking others to do your homework for you
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post #10 of 82 (permalink) Old Jun 16th, 2005, 10:19 PM
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Honeslty, you children are being very difficult. The poor kid was asking for a little Math help and you guys are being bitches about it. Help the kid, or leave the topic. No need to be smart-asses.

Let them eat cake.
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post #11 of 82 (permalink) Old Jun 16th, 2005, 10:21 PM
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Quote:
Originally Posted by anniflava
Honeslty, you children are being very difficult. The poor kid was asking for a little Math help and you guys are being bitches about it. Help the kid, or leave the topic. No need to be smart-asses.
well said Poor daffodil

Sorry, I can't help because we haven't learn that topic yet, i think we're learning it next term

I hope someone else can help you!
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post #12 of 82 (permalink) Old Jun 16th, 2005, 10:22 PM
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I'd be glad to help you, but I failed Math. Sorry, Daffy!

Let them eat cake.
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post #13 of 82 (permalink) Old Jun 16th, 2005, 10:25 PM
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Quote:
Originally Posted by daffodil
Please help me solve this problems. SHOW YOUR WORK!!!

22. Select the equation of the line that is parallel to 3x + 9 = 0.

a) 3y + 9 = 0
b) y = 8
c) x = -20
d) 2x + y = 0

28. Select the pair of lines that intersect.

a) y + 9 = 0, y = 8
b) 2x - y = 6, y = 2x + 3.8
c) x = 0, -7 = x
d) y = -x + 3, y = x + 3

34. The reciprocal of -7 2/3 is:

a) -3/23
b) -7 2/3
c) 3/23
d) 7 2/3

43. Evaluate (-2) to the power : -3

a) 6
b) 1/8
c) -1/8
d) -8

47. Evaluate (-2/5) to the power : -3

a) 125/8
b) -125/8
c) -2/5
d) 8/125

64. Which of the following is NOT a solution of the equation y = -5x + 7?

a) x=6, y=1
b) x=1, y=2
c) x=0, y=7
d) x=2, y=-3

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post #14 of 82 (permalink) Old Jun 16th, 2005, 10:28 PM
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Quote:
Originally Posted by daffodil
68. Solve a + 3/5 = 2

a) a=5
b) a=7
c) a=10
d) a=2

This one I don't understand

73. Which equation represents a line with slope 5 and a y-intercept of -2?

a) 5x - y - 2 = 0
b) -5x + 2 = y
c) 5y + 2 = x
d) 5x + y + 2 = 0

I would need an English-language definition of "slope", not to be guessing.. I learnt math in Russia..

75. A pair of lines is defined by the two equations y = 4x - 3 and y = x + 6. The point of intersection of the two lines is:

a) (3, 9)
b) (1, 1)
c) (0, 0)
d) (-2, 4)

"..just knowing that as long as i choose life, there is hope."

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post #15 of 82 (permalink) Old Jun 16th, 2005, 10:29 PM
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28 is D. They both have the same y-intercept, so they'd cross there.
34 is A. A receciprocal means that if you multiply them together you will get 1.
43 is C. A negative power means you put the base over 1, so -1/2 to the third power. -1/2 * -1/2 * -1/2 = -1/8
47 is B. Same method as 43
64 is A. Just plug int he numbers for your variables in that equation and check to see which one does not work.


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