Hello!
To find the area of a circle you use the equation
r is the radius which is half the diameter
Square 18.5
Put this into the calculator and you get the answer of about 1075.21
The answer is about 1075.21
Hope this helps!
The coordinates of vertex B' are (-1,3)
<h3>What is reflection?</h3>
Reflection is a mathematical transformation in which a image of an object is formed by flipping it over a reflection line a distance equal to the distance of the object from the reflection line.
Analysis:
When an object is reflected along the y-axis, only the the x-coordinate changes , if reflected along the x-axis, only the y-coordinate changes.
So vertex B' is a reflected vertex along the y- axis since it is at x=2
The distance of the x-coordinate of vertex B from the mirror line is 5-2 = 3
so the x-coordinate of vertex B' is going 3 units away from the mirror line which is at -1.
So the coordinates of vertex B' are (-1,3)
In conclusion, the coordinates of vertex B' reflected over the line X= 2 are (-1,3)
Learn more about transformation: brainly.com/question/4289712
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When the equation is of the form
... ax² +bx +c = 0
the discriminant is
... d = b² -4ac
Here, your equation is in the appropriate form, so we can identify
... a = -1, b = 4, c = -2
and calculate the discriminant as
... d = 4² - 4(-1)(-2) = 16 - 8 = 8
The discriminant is 8.
Answer:
No.
Step-by-step explanation:
A function is when there is one x value for every y value. We see that for -1, there are 2 y values for the one x value, so it is not a function.
