Factor out the greatest common factor from the polynomial. Use a positive coefficient on the GCF.6x4 - 18x2
A. 6x2(x2 - 18)
B. 6(x4 - 3x)
C. 6x2(x2 - 3)
D. 18x2(x2 - 1)
Answer: C
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Solve.A cruise boat travels at its top speed 48 miles downstream in 4 hours and returns to its starting point upstream, also at its top speed, in 6 hours. Find the speed of the stream.
A. 22 mph B. 12 mph C. 10 mph D. 2 mph
Evaluate the determinant.
A. 4 B. -52 C. 104 D. -4
Simplify.
A. 
B. 
C. 
D. 
Solve the problem.The value of a certain make and model of used car can depend on several factors. The table gives data for the values of three Chevy Caprice station wagons. The value V is measured in dollars, where A is the age of the car in years, and C is the condition of the car rated on a scale of 1 to 10 (10 is excellent condition).
The variables are found to be related by the equation 
Use the information given in the table to write a matrix equation which when solved will yield the values of a, b, and c. Then, using the fact that the inverse of the
matrix 
is 
, find a.
A. a = 14,655
B. a = 15,600
C. a = 15,850
D. a = 14,900