1. 8.32
2. 7.724
3. 54.889
4. 1.862068965517241
5. 100
6. 19.9832
7. 3.758
8. 13.9411
0 = x + 2 + x^2
x^2 + x + 2 = 0
a = 1, b = 1, c = 2
discriminant = b^2 - 4ac = 1^2 - (4 x 1 x 2) = 1 - 8 = -7
Answer:
I hope my drawing explains well lol... h = 16
Step-by-step explanation:
So basically first you need to find x (the one in the drawing), by doing so, you just have to use the formula,

You substitute in the speed and the time given,

Then, you use the Pythagorean theorem,

The answer is D because all you have to do is subtract the two numbers in the water tank.