Calculate the final balance.$1000 at 3% simple interest for 7 yr.
A. $1047.62
B. $1428.57
C. $1121.00
D. $1210.00
Answer: D
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If 
, make a graph of 
versus f. Use a horizontal span of 0 to 10.
What will be an ideal response?
Use Bayes' rule to find the indicated probability.The incidence of a certain disease on the island of Tukow is 4%. A new test has been developed to diagnose the disease. Using this test, 91% of those who have the disease test positive while 4% of those who do not have the disease test positive (false positive). If a person tests positive, what is the probability that he or she actually has the disease?
A. 0.438 B. 0.487 C. 0.91 D. 0.856
Find the real solutions, if any, of the equation. Use the quadratic formula.x2 + 4x - 9 = 0
A. {-2 - 1
, -2 + 1
}
B. {2 + 
}
C. {-1 - 
, -1 + 
}
D. {-2 - 
, -2 + 
}
Solve by the substitution method.5x + 35 = 5y2x - 3y = -20
A. No solution B. (-1, 7) C. (-1, 6) D. (-2, 7)