A survey of 100 bank customers revealed that 58 of them have a savings account, 63 of them have a checking account, 22 of them have a savings account and a loan, 16 of them have a checking account and a loan, 27 of them have only a checking account, 12 have a savings account and a checking account and a loan. Assume that every customer has at least one of the services. How many customers have a loan?
A. 38
B. 37
C. 50
D. 11
E. none of these
Answer: B
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Identify all of the symmetries in the following figure.
A. It has rotation symmetry with angles of 360° ÷ 5 = 72° and multiples of 72°. It can also be reflected across five lines through its center and retain its appearance. B. It has rotation symmetry; it can be rotated through 270° and its appearance remains the same. C. It has rotation symmetry with angles of 360° ÷ 5 = 72° and multiples of 72°. D. None of these.
Find the conjugate of each complex number.-2 + 4j
A. 2 - 4j B. 4 - 2j C. -2 - 4j D. 2 + 4j
Find the domain of the rational expression.
A. {x|x is a real number and x ? 7} B. {x|x is a real number} C. {x|x is a real number and x ? 3} D. {x|x is a real number and x ? 3 and x ? 7}
Solve the inequality.
?
?
A. 
B. 
C. 
D. 
E. 