Solve the system using Gaussian elimination.
A. {(-4, 15, -21, -13)}
B. {(1, 3, 0, 3)}
C. {(2 + w, 1 - 2w, 4 + 2w, w )|w is any real number}
D. {(2, 1, 4, 1)}
Answer: D
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Solve the problem.John is 7 times as heavy as his dog.Determine which of the statement's below is true.
A. John weighs 600% more than his dog. B. John weight is 600% of his dog's weight. C. John weighs 700% more than his dog. D. John's dog weighs 600% less than John.
Insert < or > between each pair of numbers to form a true statement.-0.99200 _____ -0.99299
A. > B. <
Graph the ellipse.
+ 
= 1
A. 
B. 
C. 
D. 
Solve the problem. Use ? ? 3.14.The outside of a water storage tank is in the shape of a sphere. Find the volume of the tank if its radius is 18.5 feet. Round your answer to the nearest hundredth.
A. V ? 1074.67 ft3 B. V ? 26,508.4 ft3 C. V ? 19,881.3 ft3 D. V ? 1432.89 ft3