Agas station stores its gasoline in a tank under the ground. the tank is a cylinder lying horizontally on its side. (in other words, the tank is not standing vertically on one of its flat ends.) if the radius of the cylinder is 0.5 meters, its length is 7 meters, and its top is 4 meters under the ground, find the total amount of work needed to pump the gasoline out of the tank. (the density of gasoline is 673 kilograms per cubic meter; use g=9.8m/s^2

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

What is the length of the segment, endpoints of which are intersections of parabolas y=x^2− 11/4 x− 7/4 and y=− 7 /8 x^2+x+ 31/8 ?

The given diagram shows the parts of a right triangle with an altitude to the hypotenuse. using the two given  measures, find the other four.