Although your question is incomplete and the expression is a little incorrect, I have seen it before.
h(t) = -0.2t² + 2t
In order to find the maximum height, we first differentiate the expression and then set the derivative equal to 0. Thus:
0 = -0.4t + 2
t = 5 seconds
The ball reaches its maximum height at 5 seconds
The ball reaches the ground again when h(t) = 0
0 = -0.2t² + 2t
t(-0.2t + 2) = 0
t = 0 ; t = 10
Therefore, the ball reaches the ground when time is 10 seconds
The answer is 16 units
An easy way to find the perimeter is remembering the formula of a+b+c.
So in this case, you count how many units each line of the triangle it covers. 4+6+6= 16
1 hr = 9.75
351/9.75= 36 hours
to check multiply 36X 9.75 = 351
Answer:
9
Step-by-step explanation:
Each pen can only hold 8 pigs, and pens cannot be split up into fractions.
Divide. 71 / 8 = 8.875
There is no 7/8 of a pen, so you must round up.
8.875 → 9.