Answer: The projectile reaches its maximum height after 20 seconds.
Step-by-step explanation:
Given the function:
You can following formula (which gives the x -coordinate of the vertex of the parabola) in order to find after how many seconds the projectile takes to reach its maximum height:
In this case you can identify that the values of "a" and "b" are:
Then, substituting values into the formula, you get the following result:
Therefore,based on this, the conclusion is: The projectile reaches its maximum height after 20 seconds.
Answer:$40,861
Step-by-step explanation:
40,000+800+61=$40861
Dear sir, we know not what you mean.
1.c: 25...............
2.b: n=5...........
To find all the possible combinations, you will multiply all the choices together because you can groups each choice with any of the other.
4 x 6 x 2 x 3 = 144
There are 144 choices.
Think of the first option, you can combine 1 small toy with any of the other options for each toy.