10 is a root of x3 - 1000 = 0, so (x-10) is a factor. Use long division (x3 - 1000)/(x-10) to find x2 + 10x + 100, as the other factor.
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Infinity.
Yes, but remember that 2 negatives is a positive. so -2 to the 2nd power would be 4, but -2 to the 3rd power would be -8.
2.5 x 10^3 = 2500 3.5 X 10^2 = 350 sum = 2850 = 2.85 x 10^3
No because volume involves multiplying by a value on the 3rd dimension, and since the length on the 3rd dimension is 0 a square's volume is 0.
Picture a coordinate axes with the x-axis on the horizontal and the y-axis on the vertical in typical fashion. X is greater than or equal to 0 in the 1st and 3rd quadrants. Y is less than or equal to zero anywhere under (or equal to) the x-axis. The 3rd quadrant is where both conditions occur together.