1 Martin hits a golf ball with an upward velocity of 120 feet per second. The function h=-16t2 + 120t models the flight of the golf ball hit at ground level, where h is the height of the ball in feet after t seconds. How long was the golf ball in the air? ​

An assembly consists of two mechanical components. suppose that the probabilities that the first and second components meet specifications are 0.87 and 0.84. assume that the components are independent. determine the probability mass function of the number of components in the assembly that meet specifications. x

Can someone pls ! pls answer all. no explanation needed..

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup