Solve the mixture problem.In a chemistry class, 6 liters of a 4% silver iodide solution must be mixed with a 10% solution to get a 6% solution. How many liters of the 10% solution are needed?
A. 3 liters
B. 6 liters
C. 4 liters
D. 2 liters
Answer: A
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A. 
B. 
C. 
D. 
Given a = 12, b = 11, and c = 10, use the Law of Cosines to solve the triangle for the value of B. Round your answer to two decimal places.
What will be an ideal response?
Find an equation in slope-intercept form (where possible) for the line.Through (-2, 8), perpendicular to -7x - 9y = 86
A. y = 
x + 
B. y = - 
x + 
C. y = 
x + 
D. y = 
x + 
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What will be an ideal response?