Find the common difference for the arithmetic sequence.3, 4, 5, 6, ...
A. 3
B. -1
C. 0.01
D. 1
Answer: D
Mathematics
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Find the indicated probability.The following table show the results of a clinical trial for an allergy drug. 
What is the probability that a randomly selected person received no treatment or improved? Round your answer to the nearest thousandth when necessary.
A. 0.89 B. 0.082 C. 0.742 D. 0.66
Mathematics
Write an algebraic equation and use it to solve the problem.Jason borrowed $9000 at a simple interest rate of 6.5% for three-quarters of a year. What was the interest?
A. $9438.75 B. $438.75 C. $43.88 D. $9043.88
Mathematics
Solve the problem.A partial graph of an odd function with domain D = {x|-3 ? x ? 3} is shown in the figure. Make a sketch of the complete graph.
A. 
B. 
C. 
D. 
Mathematics
Find a ? b.a = 15j, b = i + 3j
A. -45
B. 
C. 
D. 45
Mathematics