Find, if possible, AB and BA.A = 
, B = 
A. AB = 
, BA not defined
B. AB = 
, BA not defined
C. AB = 
, BA = 
D. AB = 
, BA = 
Answer: A
Mathematics
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Write the English phrase as an algebraic expression. Let x represent the number. Simplify the expression, if possible.8 times a number
A. 8x
B. 
C. 8 - x
D. 8 + x
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Find the product and simplify.
? 
A. 
B. 3
C. 3
D. 
Mathematics
For the given functions f and g, find the requested function.If f(x) = x2 + 6x and g(x) = x + 4, find (g ? f)(2).
A. 72 B. 96 C. 22 D. 20
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Find the absolute value of the complex number . -1 -2i
a. 
b. 5
c. 
d. 
e. 
Mathematics