Identify the planes that are perpendicular. Select the correct answer.
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Mathematics
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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. 8 B. 12 C. 9 D. 3
Mathematics
Solve the problem.The sales for a gaming console for various years are listed in the table below. 
Let f(t) represent the sales (in billions of dollars) at t years since 2008. A reasonable model is 
Use the model to predict sales in 2024.
A. $7.16 billion B. $5.85 billion C. $6.41 billion D. $7.71 billion
Mathematics
Add.
+ 
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation.28 km - 2,661 m (in kilometers)
A. 25,339 km B. 25.339 km C. 1.39 km D. 139 km
Mathematics