Ricardo throws a stone off a bridge into a river below.
The stone's height (in meters above the water), xxx seconds after Ricardo threw it, is modeled by
w(x)=-5(x-8)(x+4)w(x)=−5(x−8)(x+4)w , left parenthesis, x, right parenthesis, equals, minus, 5, left parenthesis, x, minus, 8, right parenthesis, left parenthesis, x, plus, 4, right parenthesis
How many seconds after being thrown will the stone reach its maximum height?

pi x^2

step-by-step explanation:

pi times x squared

step-by-step explanation:

and 90% of people marry there 7th grade love. since u have read this, u will be told good news 2night. if u don't pass this on nine comments ur worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of ur life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love u

read more on -

i don't know

step-by-step explanation: