Mathematics, 28.03.2021 22:00, emileep13

A person throws a ball down toward the ground off the top of a 20-foot tall building. Suppose the polynomial h(t)= −16t^2−4t+20 models the ball's height above the ground in feet t seconds after it was thrown.

How many seconds does it take for the ball to hit the ground?
seconds

Round your answer to 2 decimal places.

Answers: 3

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 15:00, saucyboyFredo

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

Answers: 3

continue

Mathematics, 21.06.2019 17:00, daeshawnc14

Jamie went to home depot. she bought 25 bags of soil that cost $9 per bag. she bought 15 pots at $8 each, and she bought 23 bags of pebbles at $15 each. she used a coupon that gave her $5 off for every 100 dollars she spent. how much did jamie pay at the end?

Answers: 1

continue

Mathematics, 22.06.2019 02:10, kinqlouiee2253

Of jk j(–25, 10) k(5, –20). is y- of l, jk a 7: 3 ? –16 –11 –4 –1

Answers: 1

continue

Mathematics, 22.06.2019 02:30, june1198

Which problem would you use the following proportion to solve for? 24/x=40/100 a. what is 40% of 24? b. what percent is 24 of 40? c. twenty-four is 40% of what number? d. forty percent of 24 is what number?

Answers: 3

continue

Do you know the correct answer?

A person throws a ball down toward the ground off the top of a 20-foot tall building. Suppose the p...