Solve the system by substitution. 2u + v = 24u - 3v = -6
A. u = - 
, v = 2
B. u = 0, v = 2
C. u = 2, v = 0
D. u = 2, v = - 
Answer: B
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Solve the equation. Express radicals in simplest form.(x - 6)2 = 40
A. {6 ± 2
}
B. {6 ± 2
}
C. {2
± 6}
D. {± 2
}
Solve the problem.The function 
can be used to determine the milligrams D of a certain drug in a patient's bloodstream h hours after the drug has been given. How many milligrams will be present after 
Round the answer to two decimal places.
A. 607.55 mg B. 0.04 mg C. 2.97 mg D. 1.62 mg
Find the remaining sides of a 30° - 60° - 90° triangle if the side opposite 60° is 9.
What will be an ideal response?
Find zw or 
as specified. Leave your answer in polar form.z = 1 - iw = 1 - 
iFind 
.
A. 
(cos 15° + i sin 15°)
B. 
(cos 75° + i sin 75°)
C. 
(cos 75° + i sin 75°)
D. 
(cos 15° + i sin 15°)