Determine the size of matrix A and tell whether it is a square matrix, row matrix, column matrix, or none of these.A = 
A. 3 × 3; square matrix
B. 9; none of these
C. 6 × 6; square matrix
D. 2 × 3; none of these
Answer: A
Mathematics
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For the functions f(x) and g(x), determine the domain of (f - g)(x) (the difference of f and g).f(x) = 
, g(x) = 8x2 - 5
A. {x ? x is a real number and x ? 0} B. {x ? x is a real number} C. {x ? x is a real number and x ? -8} D. {x ? x is a real number and x ? 5}
Mathematics
Solve for the specified variable.S(1 - r) = a, for r
A. r = S - a
B. 
C. r = 
- 1
D. r = 
Mathematics
Solve.A group of 5 people wants to buy a boat. The boat costs $695. If they all pay the same amount, how much is each person's share?
A. $139 B. $149 C. $129 D. $115
Mathematics
Find the component form of vector v.
?
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics