Find the indicated cardinal number. Find n(A × B) given that A = {2} and B = {1, 3}.
A. 1
B. 4
C. 3
D. 2
Answer: D
Mathematics
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Simplify.(10x2 + 4y)2
A. 100x4 + 80x2y + 16y2 B. 100x4 + 40x2y + 16y2 C. 100x2 + 80x2y + 16y2 D. 100x4 + 116x2y + 16y2
Mathematics
Evaluate the expression or indicate that the root is not a real number.
+ 
A. 5
B. 25
C. 7
D. 
Mathematics
A tangent to a circle and a radius of that circle to the point of tangency are ___________________.
What will be an ideal response?
Mathematics
Do not leave negative exponents in your answers.Evaluate. 5(-6) - (-7)3 + 
A. -365 B. 321 C. -12,159 D. -50,645
Mathematics