Find the cardinal number of the indicated set. Use the cardinal number formula.If n(A) = 4, n(B) = 9 and n(A ? B) = 2, what is n(A ? B)?
A. 13
B. 11
C. 12
D. 10
Answer: B
Mathematics
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Multiply.3.3 × 0.01
A. 330 B. 3.300 C. 0.033 D. 0.33
Mathematics
Round as indicated.
to the nearest ten
A. 
B. 
C. 
D. 
Mathematics
Perform the operation indicated. Simplify.
+ 
- 
A. 
B. 
C. 
D. 
Mathematics
Solve the system using matrices. x - y + 3z = -8 x + 5y + z = 405x + y + 13z = 10
A. No solution B. (8, 0, 8) C. (8, 8, 0) D. Infinitely many solutions
Mathematics