A satellite in orbit accelerates according to the equation acceleration =v2r=\frac{v^2}{r}=rv2, for orbital speed vvv and distance from the Earth's center rrr. Two satellites are in orbit, one at a distance of rrr and the other at a distance of 2r2 r2r. How fast should the outer satellite travel to have the same acceleration as the inner satellite?
Find each product.
(x+y+2)2(x + y + 2)^2 (x+y+2)2
Calculate the common ratio. 5, 25, 125, 625, ...
Evaluate log3181\log_{3}\dfrac{1}{81}log3811.