Find the length of the circular arc associated with the angle ?. An angle of measure 9? in a circle of radius 5
A. 45?
B. 
C. 
?
D. 45
Answer: A
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Use the basic identities to simplify the expression.
- sec ?
A. -3 B. 2 sec2 ? - 3 C. 3 D. 0
Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.8w + 7x - 6y - 4z = 117w + 5x - 9y - 4z = -108w - 7x + 7y + 5z = -25-6w - 4x + 7y + 8z = -2
A. (-1, 4, -5, 2) B. (1, 5, 4, 2) C. (-1, 5, 4, -2) D. No solution
Solve the problem.The sales in thousands of a new type of product are given by S(t) = 100 - 60e-0.8t, where t represents time in years. Find the rate of change of sales at the time when t = 3.
A. 4.4 thousand per year B. 525.3 thousand per year C. -525.3 thousand per year D. -4.4 thousand per year
Select the graph that identifies the solution region for this system of linear inequalities:
A. 
B. 
C. 
D. 