Solve the equation by completing the square.4x2 - 4x - 8 = 0
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the series' radius of convergence.
A. 1 B. ?, for all x C. 2 D. 0
Mathematics
Use a graphing calculator to approximate the real zeros of the function defined by f(x). Express decimal approximations to the nearest hundredth.f(x) = -
x3 + 
x + 
A. No real zeros B. 1.28 C. 1.49, -1.49 D. 1.46
Mathematics
Find the simple interest. Assume a 360-day year. Round results to the nearest cent.$10,896 at 3.5% for 10 months
A. $320.47 B. $317.80 C. $349.58 D. $286.02
Mathematics
Solve the problem.Working together, Rick and Juanita can complete a job in 6 hours. It would take Rick 9 hours longer than Juanita to do the job alone. How long would it take Juanita alone?
A. 3 hr B. 15 hr C. 6 hr D. 9 hr
Mathematics