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Snezhnost [94]
3 years ago
9

If you have a stack of pennies without counting them how do you know if there is an even or odd number of them

Mathematics
1 answer:
zavuch27 [327]3 years ago
5 0

If I have a stack of pennies. And I have to tell that without counting whether there are even number of pennies or odd.

Even numbers are the numbers which are divisible by 2 and odd numbers are the numbers which are not divisible by 2.

Then I will put the given pennies in 2 rows and then I will match them to form a pair of 2 pennies. After matching, if there is 1 penny left over, then there is an odd number of pennies and if all the pennies have a match,then there is an even number of pennies.

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You can factor a 12 out from both. 12 goes into 12m 12 times and 12 goes into 60 5 times. So you would pull it out front:

12(m+5)

That's as far as you can take it. Do you have to set it equal to 0, or some other number??
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Function “p” is in the form y=ax^2 + C. If the values of “a” and “c” are both less than 0, which graph could represent “p”?
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B

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Since the value of a is less than 0, the graph of the parabola would be opening downwards. Because of this we can rule out option C. In a quadratic equation, c represents the y-intercept, and, in this case c is negative, meaning the y-intercept is less than 0. Only option B has a downward-opening curve and a y-intercept less than 0, so it is the answer.

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2 years ago
Suppose a math class has 18 females (2 of whom speak French) and 13 males (5 of whom speak French).
alisha [4.7K]

18 females, 13 males, total: 31 students.

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probability: <u>male french</u><u> </u> = 5/31,

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edit: as a percentage, 16.129 %

6 0
2 years ago
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Hope This Helps :)

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