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Mathematics
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OpenStudy (liciagrl911):
Match each item in Column A to an answer in Column B.
Would each situation be represented by a positive or a negative number?
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OpenStudy (liciagrl911):
OpenStudy (phi):
direction is a bit arbitrary. But if things get hot do they "heat up" or "heat down"
on the other hand, do things "cool up" or "cool down" ?
OpenStudy (liciagrl911):
When things get hot they heat up
OpenStudy (phi):
and people associate "up" with positive and "down" with negative.
so what is the answer for 2. ?
OpenStudy (liciagrl911):
posative
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OpenStudy (phi):
water is heated. should you think + or - ?
OpenStudy (phi):
yes, so 2. should be A
OpenStudy (phi):
in Question 3. do you know what "descends" means ?
OpenStudy (liciagrl911):
No
OpenStudy (phi):
do you know what submarines do ?
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OpenStudy (liciagrl911):
Yes
OpenStudy (liciagrl911):
I think 3 is negative
OpenStudy (phi):
descend means go down (submarines can go below the surface)
down "goes with" negative.
OpenStudy (phi):
a credit card "balance" is how much you owe (have to pay)
if you owe money, people think of that as negative.
OpenStudy (liciagrl911):
Okay and is 1 correct?
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OpenStudy (phi):
yes, destroyed means make less of , less --> negative
(and more --> positive)
OpenStudy (liciagrl911):
Okay TYSM for your help I owe you one
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