And arithmetic sequence has a first term of 10 and the sixth term of 40. what is the 20th term of the sequuence?

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g

The table below shows the approximate masses of a dust particle and a grain of pollen. dust particle 0.000000778 g grain of pollen 0.00000000155 g the mass of a dust particle can be estimated and written in the form a × 10^b, where a = 8 and b = the mass of a grain of pollen can be estimated and written in the form a × 10^b, where a = 2 and b = based on the estimates, the mass of a dust particle is approximately blank times larger than the mass of a grain of pollen.

The formula to determine energy is e=1/2mv2? what is the formula solved for v?