Determine whether the ordered pair is a solution of the system of equations. Use alphabetical order of the variables.(3, 6); x + y = 3 x - y = -9
A. Yes
B. No
Answer: B
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Solve the polynomial equation graphically or numerically. Round to the nearest hundredth if necessary.x4 - 10x2 + 16 = 0
A. -2.83, -1.41, 1.41, 2.83 B. 1.41, 2.83 C. -2.63, -1.41, 1.41, 2.53 D. -2.83, -1.81, 1.81, 2.83
Sales of the latest recording by Brittania, a British rock group, are currently 
units/week (each unit representing 10,000 discs), where t denotes the number of weeks since the recording's release. Find an expression that gives the total number of discs sold as a function of t.
What will be an ideal response?
Add or subtract. Assume all variables represent positive real numbers.
- 2
+ 7
A. 21x
B. 21x
C. 5x
D. 5x
Rationalize the denominator. Assume that all radicands represent positive real numbers.
A. 
B. 
C. 
D. 