Choose the correct equation of the given graph.
A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 
Answer: B
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Calculate the arc length of the indicated portion of the curve r(t).r(t) = (8cos3 4t)j + (8sin3 4t)k; 
? ? t ? 
?
A. 12 B. 4 C. 24 D. 0
Solve the problem.Allie and Burt agree to divide four items using the method of sealed bids. Their bids on each of the items are given in the following table.
In the final settlement, Allie got Item 3, Item 4, and $850 in cash. What was Burt's bid on Item 2?
A. $1000 B. $800 C. $900 D. $700 E. none of these
Use Descartes' Rule of Signs to determine the possible number of positive and negative real zeros for the function. Then, use a graph to determine the actual number of positive and negative real zeros.P(x) = 9x8 + 4x6 + 9x4 + 5x2 + 8
A. possible: 0 pos, 0 neg
actual: 0 pos, 0 neg
B. possible: 1 pos, 1 neg
actual: 1 pos, 1 neg
C. possible: 1 or 3 pos, 1 neg
actual: 1 pos, 1 neg
D. possible: 1 pos, 1 or 3 neg
actual: 1 pos, 1 neg
Solve the system of equations.x - y + z = 0x + y + z = 2x + y - z = 4
A. {(2, -1, 1)} B. ? C. {(-1, 2, 1)} D. {(2, 1, -1)}