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Whitepunk [10]
3 years ago
15

John has 2,456 pennies in his coin collection. He has the same number of pennies in each of 3 boxes. Estimate to the nearest hun

dred the number of pennies in each box.
Mathematics
1 answer:
slega [8]3 years ago
7 0
<span>In order to determine how many pennies John has in each box, we have to divide 2,456 (total number of pennies) by 3 (total number of boxes). This means there are 819 (rounded) pennies in each one of John's boxes.</span>
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Find the x and y intercepts of the quadratic equation<br> f(x)=-x^2+4x-4
earnstyle [38]
<u>X - Intercept</u>
f(x) = -x² + 4x - 4
   0 = -x² + 4x - 4
   x = <u>-(4) +/- √((4)² - 4(-1)(-4))</u>
                         2(-1)
   x = <u>-4 +/- √(16 - 16)</u>
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   x = <u>-4 +/- √(0)
</u>               -2<u>
</u>   x = <u>-4 +/- 0
</u>              -2<u>
</u>   x = <u>-4 + 0</u>      x = <u>-4 - 0</u>  
            -2                 -2
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The solution to the problem is {2, 2}, or {2}. The x - intercept of the problem is (2, 0).

<u>Y - Intercept</u>
f(x) = -x² + 4x - 4
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f(x) = -0 + 0 - 4
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The y - intercept of the problem is (0, -4).
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8 0
4 years ago
Problem in the attachment
TEA [102]
You can solve this by multiplying each numerator by the answer choices and trying to divide them. I can't get the fraction maker to work at the moment, so I'll write the calculations on a separate attachment.

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\\ \sf\longmapsto PQ=16km-9km

\\ \sf\longmapsto PQ=7km

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