Find a formula for the nth term of the arithmetic sequence shown in the graph.
A. an = n - 3
B. an = n - 4
C. an = n + 4
D. an = n + 3
Answer: B
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Solve the problem.Suppose y = mx + b is a mathematical model for actual time as a function of estimated time, where y represents actual time and x represents estimated time and m and b are constants. If m = 3 and b = -4.6, what was the estimated time, x, if the actual elapsed time is 175.4 minutes?
A. 175.4 min B. 521.6 min C. 60 min D. 540 min
Solve the problem.Find the magnitude of the torque in foot-pounds at point P for the following lever:
= 3 in. and 
= 20 lb
A. 9.72 ft-lb B. 4.53 ft-lb C. 2.11 ft-lb D. 60 ft-lb
Find a formula for the nth term of the sequence.0, 2, 2, 2, 0, 2, 2, 2 (0, 2, 2, 2 repeated)
A. an = 1 + (-1)(n+1)(n + 2)/2 B. an = 1 + (-1)n(n+1)/2 C. an = 1 + (-1)n(n-1)/2 D. an = 1 + (-1)n(n+1)(n+2)/6
Answer the following statement(s) true (T) or false (F)
Student preconceptions are formed through both in-school and out-of-school experiences.