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tiny-mole [99]
3 years ago
5

Please answer this correctly

Mathematics
1 answer:
Darya [45]3 years ago
6 0

Answer:

2:38 PM

Step-by-step explanation:

1 hour and 56 minutes plus 1 hour and 9 minutes is 3 hours and 5 minutes just for playing games altogether. Now, eating took 56 minutes. That means the total time it took for playing basketball and swimming and eating dinner took 4 hours and 1 minute. Finally, if dinner ended at 6:39 PM, then you would want to subtract the total time from 6:39 PM in order to find the answer. 6:39 PM minutes 4:01 gives you 2:38.

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6 0
3 years ago
Find a quadratic polynomial the sum and product of whose zeroes are -8 and 12 respectively. Hence find the zeroes.
Olenka [21]

Step-by-step explanation:

We khow the sum and the product of the zeroes of this quadratic polynomial

Here is a trick :

when we khow the sum S and the product P ofvtwo numbers we can find them by solving :

x²-Sx+p=0

here S= -8 and P=12

so:

x²+8x+12=0

Let Δ be the discrminant of this equation: a= 1 , b= 8 and c=12

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the zeros are:

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verify:

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now the polynomial quadratic is:

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3 years ago
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3 0
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slamgirl [31]

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Step-by-step explanation:

4 0
2 years ago
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