Solve the system.
A. inconsistent (no solution)
B. (0, -5)
C. dependent (many solutions)
D. (-1, -4)
Answer: A
Mathematics
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Solve the problem. Express the answer in scientific notation to two decimals unless requested otherwise.The median family income in a certain year was $46,676 and there were about 7.2 × 107 families. Calculate the total family income for that year.
A. $336 × 1012 B. $3.36 × 10-12 C. $2 × 1012 D. $3.36 × 1012
Mathematics
The given set is a basis for a subspace W. Use the Gram-Schmidt process to produce an orthogonal basis for W.Let x1 = 
, x2 = 
A. 
, 
B. 
, 
C. 
, 
D. 
, 
Mathematics
Multiply. Leave the answer in factored form.
? 
A. 
B. 
C. 
D. 
Mathematics
Evaluate the function as indicated.Find f(0) when f(x) = -3x + 19.
A. -3 B. 19 C. 0 D. 16
Mathematics