An object moves along the x-axis, its position at each time t> 0 given by x(t)= 1/4t^4- t^3 + t^2 determine the time interval(s), if any, during which the object moves right.

Which product is positive a is 2/5 -8/9 -1/3 -2/7 b is -2/5 8/9 -1/3 -2/7 c is 2/5 8/9 1/3 -2/7 d is -2/5 -8/9 1/3 2/7

Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?

What is the order of these fractions from least to greatest 2/3 7/10 5/8 65/500