Determine whether or not the equation is quadratic.9x2 = 3 - x
A. Not quadratic.
B. Quadratic.
Answer: B
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Solve the problem.The voltage v (in volts) induced in a tape head is given by 
where t is the time (in seconds). Find the average value of v over the interval from t = 0 to t = 2. Round to the nearest volt.
A. 1564 volts B. 6 volts C. 40 volts D. 194 volts
Solve the problem. Assume all numbers are approximate unless otherwise stated or the number has been determined by a definition or counting process.The capacitance of a certain element in an electric circuit (in ?F) was determined by calculating the value of 
Calculate this capacitance.
A. 8.0 ?F B. 7.5 ?F C. 7.7 ?F D. 7.3 ?F
Solve the equation by the method of your choice. Simplify irrational solutions, if possible.(7x + 9)2 = 64
A. 
B. 
C. 
D. 
Identify the vertex of the given parabola.f(x) = x2 + 9
A. (9, 0) B. (-9, 0) C. (0, -9) D. (0, 9)