a football was kicked vertically upward from a height of 4 feet with an initial speed of 65 feet per second. the formula h=4+65t-16t^2 describes the balls height above ground, h, in feet, t seconds after it was kicked. Use the formula to find the ball's height 2 seconds after it was kicked.

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

Which is f(5) for the function –2x2 + 2x - 3?

What is the graph of the function fx x+2/x-3?