Answer:
A e/f
Step-by-step explanation:

Two negatives always equal one positive
Recall:
Negative + Negative = Positive
Negative + Positive = Negative
Positive + Positive = Positive
Answer:
5/10 or 1/2
Step-by-step explanation:
Beth ate 2/10 so 2/10+3/10+2/10=5/10=1/2
Right now that equation is a function of time, h(t), height with respect to time. If the baseball is on the ground, it has no height. In other words, its height = 0. So if we set the equation equal to 0 and solve for t, time, that will tell us the time that the ball had a height of 0. If you plug those numbers into the quadratic formula, which is the best and most efficient way to factor a quadratic, you will get that the times are -.0615528128 and 4.061552813 seconds. The 2 things in math that will never EVER be negative are time and distance/length. So we know that the ball will not hit the ground at -.062 seconds. Therefore, it hits the ground 4.06 seconds after it was hit.
Answer:
1 liter of water
Step-by-step explanation:
If 80 % is acid that's means 4 liters of the 5 is acid. (0.8 * 5)
The remaining amount is 1