Answer: 354cm square
Step-by-step explanation:
18x20= 360
20-16=4
18-15=3
4x3/2=12/2=6
360-6=354
Hope this help :)
Answer:
1,436.9 in
Step-by-step explanation:
V=πr²(h/3)
V=π(9.9)²(14/3)
V=1,436.9 in
Answer:
sadly I'm not brainly
Step-by-step explanation:
Step-by-step explanation:
D=Y/Y IS AN INTEGER AND -2
Answer:
The ball reaches the maximum height after 1 seconds
Step-by-step explanation:
Given
--- the function missing from the question
Required
Time to reach maximum height
The time (t) to reach maximum height is calculated using:
![t = -\frac{b}{2a}](https://tex.z-dn.net/?f=t%20%3D%20-%5Cfrac%7Bb%7D%7B2a%7D)
Where
![y =at^2 + bx + c](https://tex.z-dn.net/?f=y%20%3Dat%5E2%20%2B%20bx%20%2B%20c)
So, by comparison:
![a = -16](https://tex.z-dn.net/?f=a%20%3D%20-16)
![b = 32](https://tex.z-dn.net/?f=b%20%3D%2032)
![c = 4](https://tex.z-dn.net/?f=c%20%3D%204)
So, we have:
![t = -\frac{b}{2a}](https://tex.z-dn.net/?f=t%20%3D%20-%5Cfrac%7Bb%7D%7B2a%7D)
![t = -\frac{32}{2*-16}](https://tex.z-dn.net/?f=t%20%3D%20-%5Cfrac%7B32%7D%7B2%2A-16%7D)
![t = -\frac{32}{-32}](https://tex.z-dn.net/?f=t%20%3D%20-%5Cfrac%7B32%7D%7B-32%7D)
![t = \frac{32}{32}](https://tex.z-dn.net/?f=t%20%3D%20%5Cfrac%7B32%7D%7B32%7D)
![t = 1](https://tex.z-dn.net/?f=t%20%3D%201)