An engineer wants to determine how the weight of a gas-powered car, x, affects gas mileage. The accompanying data represent the weights of vanous domestic cars and their miles per gallon in the city for the most recent model year Complete parts (a) through (d) below.

The tiles below are pieces of a normal ecg tracing representing a little less than two heartbeats at a resting rate of 80 bpm. arrange the tiles in their correct order. rank from first to last. do not overlap any tiles.

Someone answer asap for ! a ball is rolled down a ramp. the height, f(x), in meters, of the ball x seconds after it is released is modeled by the function f(x) = x²- 10x + 25 for all values of x from 0 to 5. which statement about the ball is true? a. the maximum height of the ball is 5 meters b. the height of the ball increases from 0 to 5 meters above the ground. c. the ball has traveled 5 meters when it reaches the bottom of the ramp. d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25