Answer:
A + B would be less than A - B
Step-by-step explanation:
Answer C
Step-by-step explanation: lol idk
Given:
AC = √(-2-3)² + (6-2)²
AC = √ -5² + 4²
AC = √ 25 + 16
AC = √41
AC = 6.40
I am assuming that the triangle is an equilateral triangle. This means that all sides are equal.
AC = AB = BC
Perimeter = 6.40 * 3 sides = 19.20
For this case we have the following quadratic equation:

To factorize, we must find two numbers that when multiplied result in -6 and when added together result in +5. These numbers are: -1 and +6

Then we factor:

Thus, the roots are:

So, Gisele was wrong in step 2. She couldn't find the correct values to factorize.
Answer:
Gisele was wrong in step 2. She couldn't find the correct values to factorize.
Answer:
The vertex is the point (-1,11). is a maximum
Step-by-step explanation:
we know that
The equation of a vertical parabola in vertex form is equal to

where
(h,k) is the vertex
a is a coefficient
if a > 0 the parabola open upward and the vertex is a minimum
if a < 0 the parabola open downward and the vertex is a maximum
we have

Convert to vertex form
Complete the square

Factor the leading coefficient



Rewrite as perfect squares


The vertex is the point (-1,11)
The coefficient a=-5
so
a < 0 the parabola open downward and the vertex is a maximum