Why does a truck take longer to accelerate to 100km/hr when its pulling a 1,000 kg trailer than when it isn't

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. solve this quadratic equation using the quadratic formula. 2x2 - 2x=1 need asap

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11