Answer:
Step-by-step explanation:
You start with your equation 1+x=3 then you take away 1 from each side so you would have 1-1 which cancel each other out and 3-1=2 and then you have your answer x=2
The surface area of the pyramid is 260 square centimeters.
Answer:
R=-4
Step-by-step explanation:
-3(2r+7)=3
-6r-21=3
-6r=24
r=-4
I hope this is correct and have a great day
Using the vertex of the quadratic equation, it is found that the maximum profit she can earn is of $106.
<h3>
What is the vertex of a quadratic equation?</h3>
A quadratic equation is modeled by:

The vertex is given by:

In which:


Considering the coefficient a, we have that:
- If a < 0, the vertex is a maximum point.
- If a > 0, the vertex is a minimum point.
In this problem, her profit is modeled by:

Which is a quadratic equation with coefficients a = -1, b = 14, c = 57, hence, her maximum profit in dollars is given by:

More can be learned about the vertex of a quadratic equation at brainly.com/question/24737967
Answer:
7 and 5 are congruent
Step-by-step explanation:
which pair of angles is congruent meaning which pair of angles is the same when looking at the angles given angles 5 and 7 are the same