0.4 was rounded to 1 significant figure.
What is the lower bound?

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11

Which of the following vectors are orthogonal to (2,1)? check all that apply

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.