Factor completely. If unfactorable, indicate that the polynomial is prime.75x2 + 90xy + 27y2
A. 3(5x - 3y)2
B. 3(25x2 + 30xy + 9y2)
C. 3(5x + 3y)2
D. 3( x + 3y)(x - 3y )
Answer: C
Mathematics
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Use the range rule of thumb to approximate the standard deviation.The maximum value of a distribution is 12.6 and the minimum value is 4.3. Round results to the nearest tenth.
A. 7.1 B. 2.1 C. -0.9 D. 10.7
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Solve the problem.Find the center of mass of the upper half of a solid ball of radius 2 centered at the origin if the density at any point is proportional to the distance from that point to the 
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Perform the indicated operation and write the answer in lowest terms.
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Mathematics
Solve for the equation y" - 4y' + 3y = 0
What will be an ideal response?
Mathematics