An expression which shows the correct substitution of the values a, b, and c from the equation 0 = – 3x2 – 2x + 6 into the quadratic formula is: expression A. Therefore, the correct answer option is A.
<h3>What is a quadratic equation?</h3>
A quadratic equation can be defined as a mathematical expression (equation) that can be used to define and represent the relationship that exists between two or more variable on a graph. In Mathematics, the standard form of a quadratic equation is given by;
ax² + bx + c = 0
Mathematically, the quadratic formula is modeled or represented by this mathematical expression:
From the information provided, we have the following values;
0 = -3x² - 2x + 6
Where:
a = -3
b = -2
c = 6
Substituting the values into the quadratic formula, we have;
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Answer: 0.18 is your answer
Step-by-step explanation:
Answer:
.0625 or A
Step-by-step explanation:
You have to work out the mean. (The simple average of those numbers) Then for each number subtract the Mean and square the result. Then work out the average of those squared differences.
Answer: 
Step-by-step explanation:
The missing figure is attached.
For this exercise you can divide the given figure into three rectangles.
The formula for calculate the area of a rectangle is:
Where "l" is the lenght and "w" is the width.
Knowing this, you can calculate the area of each rectangle.
Then:
Area of the Rectangle A
You can identify that:
Then, its area is:
Area of the Rectangle B
Observe that:
Then, its area is:
Area of the Rectangle C
You can identify that:
Then, its area is:
Add the area of the rectangles in order to find the total area. This is:
Therefore, you will need of outdoor carpet for that hole.
