Answer:
4
Step-by-step explanation:
Answer:
x = 20
Step-by-step explanation:
Assuming that both 6x and 120 are equal to each other, you can use simple algebra to find out what x is
6x = 120 (divide both sides by 6 to isolate x)
x = 20
Answer: 
Step-by-step explanation:
The area of a rectangle:
×
× 
× 
-Result:
Answer: The y-value of the vertex is
Step-by-step explanation: we know that
The equation of a vertical parabola into vertex form is equal to
where
(h,k) is the vertex of the parabola
In this problem we have
-----> this a vertical parabola open upward
Convert to vertex form
Group terms that contain the same variable, and move the constant to the opposite side of the equation
Factor the leading coefficient
Complete the square. Remember to balance the equation by adding the same constants to each side
Rewrite as perfect squares
The vertex is the point
The y-value of the vertex is
Take the square root. The opposite of squaring something is taking the root :)
√x^2 = √26
x = √26
x = 5.099...
OR leave it if your teacher doesn't want a decimal since it can't be simplified anymore
