Find all solutions of the equation in the interval [0, 2?). Round the solution to four decimal places.4 cos x - 3 = 0
A. 0.7227
B. 0.7227, 1.9106
C. 0.7227,4.3725
D. 0.7227, 5.0522
Answer: D
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Solve the system by graphing on a calculator. Round to the nearest hundredth if necessary.y = 3-xy = - 
A. {(-1, 3)} B. ? C. {(1, -3)} D. {(1, 3)}
For the given geometric sequence, find an and the sum of the terms from a1 to an. 3, -9, 27, -81 ... ; find a7
A. -81; 1641 B. 2187; 1641 C. 2187; 21 D. 732; -21
Solve the problem.The formula C = 1.5x + 18 represents the estimated future cost of yearly attendance at State University, where C is the cost in thousands of dollars x years after 2002. Use a compound inequality to determine when the attendance costs will range from 30 to 36 thousand dollars.
A. From 2011 to 2015 B. From 2009 to 2013 C. From 2011 to 2013 D. From 2010 to 2014
Use substitution to determine whether the system of linear equations has no solutions, one solution, or infinitely many solutions.5x - 25y = 20y = 
x - 
A. One B. No solutions C. Infinitely many