Solve.Amy teaches Chinese lessons for $65 per student for a 6-week session. From one group of students, she collects $1690. Find how many students are in the group.
A. 26 students
B. 16 students
C. 30 students
D. 28 students
Answer: A
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Solve the problem.It took three assembly-line workers 5.13 seconds, 6.489 seconds, and 5.6 seconds to assemble a product. How many seconds in all did they work?
A. 11.619 sec B. 10.73 sec C. 6.959 sec D. 17.219 sec
Use Descartes's Rule of Signs to determine the possible number of positive and negative real zeros for the given function.f(x) = 6x4 - 5x3 + x2 - 3x + 10
A. 4 positive zeros, no negative zeros B. 4 or 2 positive zeros, no negative zeros C. 4, 2 or 0 positive zeros, no negative zeros D. 4, 2 or 0 positive zeros, 1 negative zeros
Solve the equation.
= 
A. 
, - 
B. 
C. -8, 6
D. - 
Use a graphing calculator to solve the system of equations. Round your solutions to one decimal place.2.6x - 2.1y + 2.7z = 2.03.2x - 7.0y - 1.7z = -4.64.4x + 1.1y + 2.3z = 3.6
A. (0.1, 0.4, 0.7) B. (0.1, 0.3, 0.5) C. (0.2, 0.5, 1.0) D. (0.0, 0.1, 0.2)