Solve the system analytically. x - y + 4z = 9-2x + 2y - 8z = 3 x + 5y + z = -12
A. {(3, -3, 0)}
B. {(0, -3, 3)}
C. ?
D. {(3, 0, -3)}
Answer: C
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Provide an appropriate response.
and 
__________.
A. coincide B. intersect C. are perpendicular D. are parallel
It is known that the quantity demanded of a certain make of portable hair dryer is x hundred units/week and the corresponding wholesale unit price is
?
?
dollars. Determine the consumers' surplus if the wholesale market price is set at $10/unit. Round your answer to the nearest dollar.
?
$__________
Fill in the blank(s) with the appropriate word(s).
Decide whether the dose is reasonable or unreasonable. If it is unreasonable, indicate whether it is too much or too little.Put 3 milliliters of solution into the eye twice a day.
A. Unreasonable, too little B. Unreasonable, too much C. Reasonable
Solve the problem.The distance from Claudia's office to her home is 33,000 feet. Estimate this distance in miles.[Hint: first round the distance to the nearest ten thousand feet. Then round the conversion equivalent for the number of feet in a mile to the nearest thousand feet. Then finish the calculation.]
A. 60 mi B. 6 mi C. 0.6 mi D. 30 mi