Use the information below to determine the cardinality of the set. U = {x | x ? N and x ? 12} A = {x | x ? N and 6 < x < 12} B = {x | x ? N and x is even and x < 12}n(A ? B)
A. 12
B. 2
C. 3
D. 8
Answer: B
Mathematics
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The function f is one-to-one. Find its inverse.f(x) = 3x + 5
A. f-1(x) = 
B. f-1(x) = 
+ 5
C. f-1(x) = 
- 5
D. f-1(x) = 
Mathematics
Perform the indicated operations and write the result in standard form.2
+ 5
A. 16i
B. 16
C. -16i
D. -16
Mathematics
Solve the problem. Round to the nearest cent as needed.How long will it take for $8400 to grow to $14,600 at an interest rate of 9.4% if the interest is compounded continuously? Round the number of years to the nearest hundredth.
A. 0.59 year B. 5.88 years C. 0.06 year D. 58.81 years
Mathematics
Give the additive inverse of the number.-2.0
A. 0
B. -2.0
C. 2.0
D. 
Mathematics