He is 68.
Even though he is half your age, that doesn't mean that he will be half your age all your life. That just means he will be X years younger.
If you need an example:
Your brother was two when you are four. So when you become 6, your brother will be come 4. The fact that he is half your age doesn't really matter once you start growing up, because he will never be half you age again.
The formula to finding a discriminant would be b^2-4ac, the b value of this trinomial being -5, the a value being 2, the c value being 3. Then, you plug the values in the equation and solve: (-5)^2-4(2)(3)
This would simplify to 1, meaning there are two solutions since the discriminant value is positive. If it is 0, there is one solution, if it is negative, then there are no real solutions.
Hello!!!!
Rounding becomes really easy if you know your places!
So, if you want to round 4.08 to the nearest tenth, all you would have to do is find the tenth place, in this case, the 8.
Since 8 is above 5, you can automatically round to 10.
So, your answer would be 5!
Hope I helped you!!!!! :)
Answer:
A. Every minute, 2/3 of a gallon is drained, so the rate of change would be -2/3
B. It would take 7.5 minutes to drain the tank
