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?

How do you solve 2 to the negative 7th power divided by 2 to the 2nd power?

What is true about Marcus's work? Check all that apply. Marcus should have substituted - 10 for b, not 10. The denominator should be 1, not 2. Marcus should have subtracted 4 (1) (25) in the square root.

Alaska, Hawaii, Washington have active volcanoes. Alaska has 43, Hawaii has 5, and Washington has v. If hey have 52 active volcanoes in all, how many volcanoes does Washington have?

Liza comes to the swimming pool once every 6 days. Jenny comes once every 4 days and Olga comes once every 10 days. This Monday all of them were in the pool. How many days after this Monday will all of them meet at the swimming pool again?

What are the partial quotients of 378 divided by 3

1/3 (22) - 1 - 1/2 (12)

In a fish tank, the ratio of goldfish to guppies is 2 to 4. There are a total of 12 fish in the fish tank. Determine the number of goldfish in the fish tank.

I'm doing easy math but i don't remember learning this so heres the question. One angle of a triangle is 20 degrees. The second angle's measurement is four times the third. Whats is the measure of the third angle?

If I have 10 dollars and I win 6 out of 10 and lose 4 out of 10 and bet 1$ each trade, how much should there be left after 10 trades?

How do you reduce the fraction 600 out of 25