Use the given matrices to compute the given expression.Let A =
and B =
. Find 3A + B.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Find the domain and range of the relation.
A. domain: (-?, ?), range: {-6, -3, 3, 4} B. domain: {-6, -3, 3, 4}, range: {-6, -2, 1, 6} C. domain: {-6, -2, 1, 6}, range: {-6, -3, 3, 4} D. domain: (-?, ?), range: (-?, ?)
Mathematics
Solve the problem.The six Cane brothers spent $88.24, $70.12, $55.74, $57.84, $70.88, and $51.13 on groceries. Find the mean grocery bill.
A. $98.49 B. $65.66 C. $78.79 D. $66.79
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Find the domain of the function.f(x) = 
A. {x|x ? -14} B. {x|x ? 0} C. all real numbers D. {x|x > -14}
Mathematics
Provide an appropriate response.Round 55.7649 to the nearest thousandth.
A. 55.775 B. 55.765 C. 55.755
Mathematics