Answer:
Step-by-step explanation:
21
1 glass holds 1/6 of a bottle then 6 glasses hold 1 glass bottle water.
so, 1 bottle can give 6 glasses of water
then
3
(
1
2
)
or
7
2
bottle can give
6
⋅
7
2
glasses of water , that is 21 glasses.
Answer link
6.81 times 10^16 is the answer in scientific notation
-(-9)-11+18 then you remove the parenthesis
9-11+18
answer: 16
Answer:
<h2>(-1, 17)</h2>
Step-by-step explanation:
The vertex form of a quadratic equation:
![y=a(x-h)^2+k](https://tex.z-dn.net/?f=y%3Da%28x-h%29%5E2%2Bk)
<em>(h, k)</em> - vertex
![y=x^2+2x+18](https://tex.z-dn.net/?f=y%3Dx%5E2%2B2x%2B18)
<em>use (a + b)² = a² + 2ab + b² </em><em>(*)</em>
![y=\underbrace{x^2+2(x)(1)+1^2}_{(*)}-1+18](https://tex.z-dn.net/?f=y%3D%5Cunderbrace%7Bx%5E2%2B2%28x%29%281%29%2B1%5E2%7D_%7B%28%2A%29%7D-1%2B18)
![y=(x+1)^2+17\\\\y=(x-(-1))^2+17](https://tex.z-dn.net/?f=y%3D%28x%2B1%29%5E2%2B17%5C%5C%5C%5Cy%3D%28x-%28-1%29%29%5E2%2B17)
<em>h = -1, k = 17</em>