Simplify. −4x^2(5x^4−3x^2+x−2)

a) −20x^8+12x^4−4x^2+8x
b) −20x^6+12x^4−4x^3+8x^2
c) −20x^6−12x^4+8x^3−8x^2
d) −20x^6+12x^4+4x^3−8x^2

The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse.a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?

How can you find the mean absolute deviation (mad) for this set of data?

Aflagpole broke in a storm. it was originally 8 1 81 feet tall. 2 8 28 feet are still sticking straight out of the ground, where it snapped, but the remaining piece has hinged over and touches the ground some distance away. how far away is the end of the pole from the base of the pole along the ground?