Use the addition principle for counting to solve the problem.If n(A) = 5, n(B) = 11 and n(A ? B) = 3, what is n(A ? B)?
A. 14
B. 13
C. 11
D. 12
Answer: B
Mathematics
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Compute the gradient of the function at the given point.
A. - 
i - 
j
B. - 
i - 
j
C. - 
i + 
j
D. 
i - 
j
Mathematics
Find the indicated term for the arithmetic sequence with first term, a1, and common difference, d.Find a9, when a1 = -4, d = -6.
A. -52 B. -58 C. 52 D. 44
Mathematics
Solve the equation.
tan(?) + 1 = 0 for -360° ? ? ? 360°
A. {-150°, -30°, 30°, 150°} B. {-330°, -150°, 30°, 210°} C. {-30°, -210°, 150°, 330°} D. {30°, 150°, 210°, 330°}
Mathematics
Find the numerical value of the expression for 
and 
2x2 + 4x
A. a) 24 b) 108 B. a) 32 b) 144 C. a) 48 b) 720 D. a) 16 b) 576
Mathematics