Estimate the sum or difference by first rounding as indicated.Estimate by first rounding to the nearest hundred.5478
A. 1745
B. 2000
C. 1700
D. 1800
Answer: D
Mathematics
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Graph the set of points whose polar coordinates satisfy the given equation or inequality.0 ? ? ? ?, r ? 3
A. 
B. 
C. 
D. 
Mathematics
Solve the problem and write the answer using scientific notation.Assume that the volume of the earth is 5 × 1014 cubic meters and the volume of a bacterium is 
cubic meters. If the earth could be filled with bacteria, how many would it contain?
A. 5.0 × 10-31 bacteria B. 2.0 × 10-30 bacteria C. 2.0 × 1030 bacteria D. 5.0 × 1031 bacteria
Mathematics
Factor.x2 + 3x - 10
A. (x + 5)(x + 2) B. (x - 5)(x + 2) C. (x + 5)(x - 2) D. (x - 5)(x - 2)
Mathematics
Multiply. Assume that all variables represent non-negative real numbers.
? 
A. 
B. 
C. 4
D. 2
Mathematics