Solve the problem.How many liters of a 10% alcohol solution must be mixed with 60 liters of a 70% solution to get a 60% solution?
A. 1.2 L
B. 12 L
C. 72 L
D. 7.2 L
Answer: B
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Solve the problem. Round your answer to the nearest tenth unless otherwise indicated.Maria's company has 979 employees, Ruth's company has 702 employees. 979 is what percent of 702 ?
A. 0.1 B. 139.5 C. 71.7 D. 1.4
Simplify by writing the expression with positive exponents. Assume that all variables represent nonzero real numbers.
A. 
B. y8
C. 
D. 
Determine whether the sequence is arithmetic.2, -3, -8, -13, -18, ...
A. Arithmetic B. Not arithmetic
A weight is hung from a spring and set in motion so that it moves up and down continuously. The velocity v of the weight at any time t is given by the equation ? v = 3.5sin 4?t ? where v is measured in meters per second and t is measured in seconds. Find the maximum velocity of the weight and the amount of time it takes for the weight to move from its lowest position to its highest position. ?
A. The maximum velocity is 3.5 meters per second ; the time it takes for the weight to move from its lowest position to its highest position is 
seconds.
B. The maximum velocity is 3.5 meters per second ; the time it takes for the weight to move from its lowest position to its highest position is 
seconds.
C. The maximum velocity is 7 meters per second ; the time it takes for the weight to move from its lowest position to its highest position is 
seconds..
D. The maximum velocity is 7 meters per second ; the time it takes for the weight to move from its lowest position to its highest position is 
seconds.
E. The maximum velocity is 2.5 meters per second ; the time it takes for the weight to move from its lowest position to its highest position is 
seconds.