Find the exact solutions to the quadratic equation, using a method of your choice.9x2 - 71x - 8 = 0
A. -9, 8
B. - 
, 8
C. - 
, 9
D. 
, - 
Answer: B
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Use your calculator to solve the problem.The impedance (in ohms) of a series RLC circuit is given by the expression 
, where R is the resistance of the resistor, XL is the reactance of the coil, and XC is the reactance of the capacitor. What is the impedance of a circuit containing a 340 ohm resistor, a coil with a reactance of 2422 ohms, and a capacitor with a reactance of 896 ohms? (All values are approximate.)
A. 830 ohms B. 6.0 × 1012 ohms C. 2,400,000 ohms D. 1600 ohms
Rank the data from lowest to highest and determine the requested quartile.Big Bucks Investment Club has a portfolio that includes stocks from 15 corporations listed on the New York Stock Exchange. The closing prices (in dollars) of each stock after yesterday's trading are listed below.
Find the 1st quartile, Q1.
A. 22
B. 23
C. 39
D. 45
Solve. Write the answer as a mixed number as needed.Peter must practice the piano 11
hours per week. He has already practiced 7
hours. How many more hours does he need to practice?
A. 3
hours
B. 4
hours
C. 2
hours
D. 3 hours
Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.5 log6 5 + 
log6(r - 2) - 
log6 r
A. log6 
B. log6 
C. log6 
D. log6 