Write the explicit definition for the following recursive rule f(1) = 15, f(n) = f(n-1) - 4 for n > 2.
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Hello i need some with trigonometric substitutions. [tex]\int\limits^a_b {x} \, dx[/tex]

Abiologist is recording the loss of fish in a pond. he notes the number of fish, f, in the pond on june 1. on july 1 there were 63 fish in the pond, which is 52 fewer fish than were in the pond on june 1. which equation represents this situation? a. f – 52 = 63 b. f – 63 = 52 c. 63 – f = 52 d. f – 63 = –52

Find the values of y: 3y^3(y^2+ 2/3y)=0