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zhenek [66]
3 years ago
7

How to factor a2b2-1 or 144y2-49 can someome help me out on this please

Mathematics
1 answer:
Sonja [21]3 years ago
5 0
A^2b^2-1

The factor of that is (ab-1)(ab+1)

144y^2-49

The factor of that is (12y-7)(12y+7)
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HELP ME PLZZZZZ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!​
Lady bird [3.3K]

Answer:

The answer is 90 winners.

Step-by-step explanation:

Well, we are given three days. The first day has a rate of 13% winning. The second day has a rate of 13% as well. And the third day has a rate of 11%. You can find this simply by dividing the amount of winners by amount of participants. Now, we must find the mean, or average, of these statistics. We will get 12% as the average rate of winners. How did we get this? By simply adding all three (13+13+11) then dividing by three (37/3), which gives us 12% if we round to a whole number. Now, we can take this number and get 12% of 750. How do we do this? Well, 12% is equal to 0.12. So we will multiply 0.12 by 750. This will give us 90. And there you have your answer.

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