Solve the equation in the real number system.3x3 - x2 - 9x + 3 = 0
A. 
B. { -3, 
, - 
}
C. 
D. { 3, 
, -
}
Answer: A
Mathematics
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Solve the problem.The height of the water, H, in feet, at a boat dock t hours after 7 A.M is given by 
, where t is time measured in seconds. Find the period.
A. 
B. 170
C. 
D. 170?
Mathematics
Solve the problem.In a chemistry class, 8 L of a 4%-silver iodide solution are mixed with a 10%-silver iodide solution to get a 6% solution. How many liters of the 10% solution are needed?
A. 8.0 L B. 3.0 L C. 4.0 L D. 5.0 L
Mathematics
Graph the ellipse and label the center.
+ 
= 1
A. C(-3, -11)
B. C(10, 2)
C. C(-10, -2)
D. C(3, 11)
Mathematics
Write in logarithmic form.25 = 52
A. log525 = 2 B. log225 = 5 C. log52 = 25 D. log255 = 2
Mathematics