Provide an appropriate response.In what quadrant of the xy-plane does P(-7, 4) lie?
A. II
B. I
C. IV
D. III
Answer: A
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Translate to an equation, then solve.The sum of fifteen and four times x is the same as the difference of three times x and seven.
A. 15 + 4x = 3x - 7, x = -22 B. 15 - 4x = 7 - 3x, x = 8 C. 15 + 4x = 7 - 3x, x = -1 D. 15 + 4x = 3x - 7, x = 8
Find the amount of each payment to be made into a sinking fund so that enough will be present to accumulate the following amount. Payments are made at the end of each period. The interest rate given is per period.$32,000; money earns 5% compounded semiannually for 11
years
A. $719.07 B. $831.06 C. $1046.28 D. $520.91
Solve the combined inequality and graph the solution set. Write the solution in interval notation.0 ? 
< 3
A. 
B. 
C. 
D. 
Solve the problem.After introducing an inhibitor into a culture of luminescent bacteria, a scientist monitors the luminosity produced by the culture. Use a graphing utility to fit a logarithmic function to the data. Predict the luminosity after 20 hours.
A. y = 98.75 - 32.66 ln (x), 0.91 B. y = 107.55 - 41 ln (x), -15.27 C. y = 100.5 - 32.7 ln (x), 2.54 D. y = 112.97 - 45.97 ln (x), -24.74