The second one
hope ya understand
Step-by-step explanation:
perimeter=2(l+b)
18=2[(x+2)+x]
18=2(x+x+2)
18=2(2x+2)
18=4x+4
collecting like terms
18+4=4x
22=4x
dividing by 4
22/4=x
5²/4=5½
Answer:
The vertex of a quadratic equation corresponds to the point where the maximum or minimum value is located.
If the function has a positive leading coefficient, the vertex corresponds to the minimum value.
If it has a negative leading coefficient, the vertex corresponds to the maximum valuevalue
If the vertex is located at
(–2, 0)
The possibilities are
y = (x-2)^2
or,
y = - (x-2)^2
Since the problem tells us the answer, we adopt the positive values
Answer:
y = (x-2)^2
See attached picture
Answer:
6006
Step-by-step explanation:
For this case what we must do is find the speed of Esmeralda.
For this, we look for the rate of change of the function
We have then:
![AVR=\frac{y2-y1}{x2-x1}](https://tex.z-dn.net/?f=AVR%3D%5Cfrac%7By2-y1%7D%7Bx2-x1%7D)
Substituting values:
![AVR=\frac{47-12}{9-2}](https://tex.z-dn.net/?f=AVR%3D%5Cfrac%7B47-12%7D%7B9-2%7D)
Rewriting:
![AVR=\frac{35}{7}](https://tex.z-dn.net/?f=AVR%3D%5Cfrac%7B35%7D%7B7%7D)
![AVR = 5](https://tex.z-dn.net/?f=%20AVR%20%3D%205%20)
Answer:
Esmeralda's average rate during her trip is 5 miles per hour.