A ball is thrown downward with a speed of 10 ft/s from the top of a 100-foot-tall building. After t seconds, its height above the ground is given by s(t) = -20t2 – 10t + 100. (a) Determine how long it takes for the ball to hit the ground. sec (b) Determine the velocity of the ball when it hits the ground. ft/sec

An object is launched at 9.8 meters per second (m/s) from a 73.5-meter tall platform. The equation for the object's height s at time t seconds after launch is s(t)=-4.9t^2+9.8t+73.5, where s is in meters. When does the object strike ground and why? Your answer Submit Never submit passwords through Google Forms This form was created inside of East Orange School District. Report Abuse edu 国 hp

 When a baseball player a baseball into the air, the height of the ball seconds after the ball is hit can be modeled with the projectile motion formula If the ball is hit at 3 feet off the ground with an upward velocity of 47 feet per second, how long will it take for the ball to hit the ground, assuming it is not caught? Use the equation h = - 16t ^ 2 + vt +s Show work

Sdlve: 4 t 3(2^*") = 13

A 30-second commercial during Super Bowl XXXVII in 2003 cost advertisers 2.2 million. For the first Super Bowl in 1967, an advertiser could have purchased approximately 26.19 minutes of advertising time for the same amount of money. (a) Assuming that advertising cost is proportional to its length of time, find the cost of advertising, in dollars/second, during the 2003 Super Bowl. cost= dollars/second. (round to nearest cent and do not enter commas) (b) Assuming that advertising cost is proportional to its length of time, find the cost of advertising, in dollars/second, during the 1967 Super Bowl. cost = dollars/second. (round to nearest cent and do not enter commas) (c) How many times more expensive was Super Bowl advertising in 2003 than in 1967? times more expensive (round to nearest whole number)

Solve for DBC please

Lucy plants 29 flowers in 2 hours how do you find the constant rate

Tanhz =

The amount of medicine (in milligrams) in a patient's bloodstream tt hours since taking a pill can be modeled by y=300(0.85)^t. The patient must take another pill when the amount of medicine in her bloodstream reaches 100 milligrams. How long since taking the first pill does the patient need to take the second pill?

dx V36-12x2