Query 9

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course Mth 151

2/7 7:24

If your solution to stated problem does not match the given solution, you should self-critique per instructions athttp://vhcc2.vhcc.edu/dsmith/geninfo/labrynth_created_fall_05/levl1_22/levl2_81/file3_259.htm

Your solution, attempt at solution. If you are unable to attempt a solution, give a phrase-by-phrase interpretation of the problem along with a statement of what you do or do not understand about it. This response should be given, based on the work you did in completing the assignment, before you look at the given solution.

011. `Query 11

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Question: `qQuery (previously 1.4.24) 1 raised to to any power is what?

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Your solution: The answer is 1. No matter how many times you multiply 1 by 1, it will always be 1.

confidence rating #$&*: 3

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Given Solution:

`a** The meaning is 1^2, 1^3, 1^4. We take a power of the base.

The result is always 1. **

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Self-critique (if necessary):

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Self-critique Rating: 3

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Question: `qQuery (previously 1.4.30) What can you say about the square root of a negative number?

What can you say about the square of a negative number?

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Your solution: Well, a negative number multiplied by another negative number makes a positive number. Similarly, a positive number multiplied by a positive number always makes another positive number. So I don’t know that a negative number could have a square root. Let me try with the calculator….. Well I can’t figure out how to find the square roots of negatives on this crazy calculator, but nevertheless, I think I’m right.

confidence rating #$&*: 2

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Given Solution:

`a** The square root of a negative will often give you an error (what can you square to get a negative, since any number squared is positive?), but on certain calculators it gives a complex number (actually two complex numbers). These are not real numbers; for the purposes of this course there is no real square root of a negative number.

There is no real number that can be squared to give a negative. If you square a negative number you get a negative times a negative, which is positive. If you square a positive number you get a positive number. So a negative number has no real square root. **

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Self-critique (if necessary): I think that means I’m right.

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Self-critique Rating: 2

@&

Your explanation was very good.

*@

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Question: `qQuery 1.4.38 (previously 1.4.42) drawer has 18 compartments; how many drawers to hold 204 tapes?

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Your solution: 204/8=25.5 So we’re going to need to have two drawers.

confidence rating #$&*: 3

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Given Solution:

`a** 204 / 18 = 11 with remainder 6. If we had 11 drawers they would hold all but 6 of the tapes.

The leftover tapes also have to go into a drawer, so we need a 12th drawer. **

Haha! I only paid attention to half of the details! OH, well.

"

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Self-critique (if necessary):

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Self-critique rating:

&#Your work looks good. See my notes. Let me know if you have any questions. &#