When played, the middle C key on a piano has a frequency of 262 cycles per second. What sine function represents this note when it is graphed with an amplitude of 0.5 unit?

Let x represent the number of seconds.

Enter your exact answer in the box.

f(x) =

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Parabolas y=−2x^2 and y=2x^2+k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.

At a local museum, the total price for one adult and one child is $11. mrs. smith paid for herself and her three children. she spent $19. record the system of equations to be solved and then find the price of an adult and child ticket using either elimination or substitution.