Find all zeroes of the function y = cos x on [–2?, 2?].
Mathematics
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Solve the problem.The numbers on the right in the equations below are the hexagonal numbers. Use the sequence of equations to find a formula for hn, the nth hexagonal number. 1 = 1 1 + 5 = 6 1 + 5 + 9 = 15 1 + 5 + 9 + 13 = 28 ..............
A. hn = (n - 1)(2n + 1) B. hn = 2n(n - 1) C. hn = n(2n - 1) D. hn = n(2n + 1)
Mathematics
Solve the problem.You get internet service for a flat rate of $15.95 per month regardless of the number of minutes that you spend online. The table shows an example of some cost data.
Do these data represent a linear function?
A. Yes B. No
Mathematics
Perform the indicated operation. If the fraction is undefined, say so.
A. 
B. 0
C. 14
D. undefined
Mathematics
Graph.f(x) = 3(x - 1)2 - 3
A. 
B. 
C. 
D. 
Mathematics