Solve the problem.If P(A) = 0.4, P(B) = 0.2, and P(A or B) = 0.5, then what is P(A and B)?
A. 0.2
B. 0.1
C. 1
D. 0.4
Answer: B
Mathematics
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Use L'Hospital's rule to find the limit.
A. ? B. 9 C. 0 D. 1
Mathematics
Write the answer to the problem as an algebraic expression.Elizabeth earned 10 dollars a day at her job. Assuming a 5-day work week, how much did she earn in x weeks?
A. 10 + x dollars B. 50 + x C. 50x dollars D. 10x dollars
Mathematics
Express the sum using summation notation. Use 1 as the lower limit of summation and i for the index of summation.
+ 
+ 
+ . . . + 
A. 
B. 
C. 
D. 
Mathematics
Determine whether the relation represents a function. If it is a function, state the domain and range.
A. function domain: {Alice, Brad, Carl} range: {cat, dog} B. function domain: {cat, dog} range: {Alice, Brad, Carl} C. not a function
Mathematics