Solve by the substitution method.x + 7y = -222x + 6y = -12
A. {(-6, -3)}
B. {(6, -4)}
C. {(5, -3)}
D. ?
Answer: B
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Find the standard deviation s for the given data. Round your answer to one more decimal place than the original data.The manager of an electrical supply store measured the diameters of the rolls of wire in the inventory. The diameters of the rolls (in m) are listed below. Compute the standard deviation(s).0.438?0.171?0.442?0.135?0.467?0.477?0.624
A. 1.2697 B. 0.1762 C. 1.0835 D. 0.135
Round the money amount to the specified place.$0.05552 to the nearest cent
A. $0.05 B. $0.00 C. $0.06 D. $1.00
Identify any vertical, horizontal, or oblique asymptotes in the graph of y = f(x). State the domain of f.
A. Vertical: x = -4; oblique: x = y - 5; (-?, -4) ? (-4, ?) B. Vertical: x = -4; oblique: y = x - 5; (-?, -4) ? (-4, ?) C. Vertical: x = 4; oblique: y = x + 5; (-?, -4) ? (-4, ?) D. Vertical: x = 4; oblique: y = x + 5; (-?, 4) ? (4, ?)
Complete the identity.cos2 
= ?
A. 
B. 
C. 
D. 