Let A and B be sets with cardinal numbers, n(A) = a and n(B) = b, respectively. Decide whether the statement is true or false.n(A ? B) = n(A) - n(B)
A. True
B. False
Answer: B
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Use colored counters to answer the question. Typically, black counters represent a profit or a positive number, while red counters represent a loss or a negative number. Here, use white in place of red, that is, consider a white counter to mean what a red counter would in the typical case.How many different-appearing rows of counters can be made using 5 counters each time? Each counter has a black side and a red side. Three possibilities are shown here (with red being represented by white).
What will be an ideal response?
Find the quotient using long division.
A. x2 + 2x + 4 + 
B. x2 + 2x + 4
C. x2 - 2x + 8 + 
D. x2 + 2x + 
Solve the problem.If a projectile is fired at an angle ? and initial velocity v, then the horizontal distance traveled by the projectile is given by 
Express D as a function of 2?.
A. D = 
v2 cos 2?
B. D = 
v2 sin 2?
C. D = 
v2 sin 2?
D. D = 
v2 sin 2?
State whether the graph is or is not that of a function.
A. Function B. Not a function