Decide whether the given matrix could be a probability vector. 
A. Yes
B. No
Answer: B
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Factor the GCF from the polynomial.27y3 - 9y2 + 12y
A. 3y(9y2 - 3y + 4) B. y(27y2 - 9y + 12) C. 3(9y3 - 3y2 + 4y) D. 3y(9y3 - 3y2 + 4y)
Solve the problem.At a local grocery store the demand for ground beef is approximately 50 pounds per week when the price per pound is $4, but is only 40 pounds per week when the price rises to $5.50 per pound. Assuming a linear relationship between the demand x and the price per pound p, express the price as a function of demand. Use this model to predict the demand if the price rises to $5.80 per pound.
A. p = 0.15x + 11.5; 38 pounds B. p = 11.5x + -0.15; 40 pounds C. p = - 0.15x + 11.5; 38 pounds D. p = - 0.15x - 11.5; 40 pounds
Solve the matrix equation.
= 
A. x = 2, y = 1, z = 6 B. x = -1, y = 6, z = 1 C. x = -1, y = 2, z = 1 D. x = 2, y = -1, z = 4
Solve the equation.(5x - 1)2 = 9(5x - 1) - 18
A. 
B. 
C. 
D. {3, 6}