Register
Alain throws a stone off a bridge into a river below. The stone's height (in meters above the water), x seconds after Alain threw it, is modeled by: h(x) = -5x^2+ 10x + 15 How many seconds after being
155k views
3 votes
Alain throws a stone off a bridge into a river below.

The stone's height (in meters above the water), x seconds after Alain threw it, is modeled by:
h(x) = -5x^2+ 10x + 15
How many seconds after being thrown will the stone hit the water?

User Coldmind
by
9.2k points

1 Answer

1 vote

the answer is 3 seconds

User Mujeeb
by
8.4k points
← Prev Question Next Question →

Related questions

Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
Link Copied!