Find the limit of the sequence if it converges; otherwise indicate divergence.an = (-1)n 
A. 4
B. 0
C. ±4
D. Diverges
Answer: B
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If the number given is a mixed number, convert it to a fraction. If the number is given as a fraction, convert it to a mixed number.
A. 
B. 
C. 
D. 
Two formulas that approximate the dosage of a drug prescribed for children are: Young's Rule: C = 
and Cowling's Rule: C = 
.In each formula, A = the child's age in years, D = an adult dosage, and C = the proper child's dosage. The formulas apply for ages 2 through 13. Use these formulas to solve the problem.Use Young's Rule to find the difference in a child's dosage for a 13-year-old child and a 5-year-old child. Express the answer as a single rational (or fractional) expression in terms of D.
A. 
D
B. 
D
C. 
D
D. 
D
Rationalize the denominator.
A. 
B. 
C. 
D. 
Solve the problem.If P(A) = 0.3, P(B) = 0.5, and P(A and B) = 0.1, then what is P(A or B)?
A. 0.6 B. 0.7 C. 0.9 D. 0.8