1/0.025
x+7:2(x+14) in the duplicate ratio of 5:8, find x
x-12=5x-2
4.6t+8.1u=104
3.8t-2.7u=-8
x(x+1)+72/x(x+1)=18
How many of the triple permutations of the set A={a,b,c,d,e} contain at least one vowel?
bggbhfnonlvgrkbv
the encryption key is 3x-1 mod 26
\int (dx)/((a^(2)+x^(2)+b^(2))^((3)/(2)))
64x^2 -8=y
Given y*z = -v*x, x + b*y + c = 0, z + e*v + f = 0, y - v = a*(x - z), evaluate x, y, z, v.