Use the information in the table to solve the problem. Write your answer as a fraction in lowest terms.The table below shows the amounts of pollutants (in parts per million) in a sample of rainwater.
Find the ratio of pollutant A to pollutant B.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Subtract.(5x2 - 11x + 8) - (2x2 - 8x + 15)
A. 3x2 - 3x + 7 B. 3x2 - 9x + 23 C. 3x2 - 3x + 23 D. 3x2 - 3x - 7
Mathematics
Write the following as an algebraic expression in u, u > 0.sin(arctan u)
A. u
B. 
C. 
D. 
Mathematics
A quadrilateral ABCD is a rhombus with two vertices A(0, 0) and B(a, 0). If the x-coordinate of D is b, then the y-coordinate of D is
(a) any number, c. (b) ?a2+b2. (c) ?b2-a2. (d) ?a2-b2 e. None of these is correct
Mathematics
Solve the problem.A stockbroker bought 80 shares of stock for $33.53 each. What was the total amount of the purchase?
A. $2682.40 B. $2682.30 C. $2682.51 D. $2682.50
Mathematics