given that negative 9i is a 0, factor the following polynomial completely. f(x)=x^4+6x^3+86x^2+486x+405

If sin θ=24/25 and 0 less than or equal to θ less than or equal to π/2, find the exact value of tan 2θ. answers; a) -527/336 b) -336/527 c)7/24 d) 24/7

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.