A ball is thrown vertically upward. after t seconds, it's height h ( in feet) is given by the function h(t) =80t -16t^2. what is the maximum height that the ball with reach. Do not round answer. Height: ​

Which speed is the fastest (use 1 mile ≈ 1.6 kilometers)? a. 12 miles/hour b. 18 feet/second c. 19 kilometers/hour d. cannot be determined

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?