Which quadratic equations have two solutions? Select all that apply.
1 answer:
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Answer:
Slope of the base segment line is zero, hence base segment is horizontal
Slope of the segment that joins the vertex angle to the midpoint of its base is undefined hence the line is vertical
Therefore, angle between base segment line and the segment line from the vertex angle to the midpoint is perpendicular
Therefore, the segment that joins the vertex angle to an isosceles triangle to the midpoint of its base is perpendicular to the base
Step-by-step explanation:
Here we prove the required relation as follows;
Let the isosceles be ABC
The coordinates of the points are
C = (0, 0) (Vertex)
A = (-a, b)
C = (a, b)
P = (0, b) (Midpoint of base)
Therefore, the gradient or slope of the base AC is presented as follows;
Hence, segment AC is vertical
Hence, segment CP is vertical
Therefore, the segment that joins the vertex angle to an isosceles triangle to the midpoint of its base is perpendicular to the base.
Answer:
The cost of fertilizing the field is
Step-by-step explanation:
we know that
The area of the figure is equal to the area of the rectangle plus the area of a complete circle (two semicircles)
Step 1
Find the area of the rectangle
The area of rectangle is equal to
where
L is the length side of rectangle
w is the width side of the rectangle
In this problem we have
substitute
Step 2
Find the area of the circle
The area of the circle is equal to
where
r is the radius of the circle
In this problem we have
substitute
Step 3
Find the area of the figure
Adds the area of rectangle and the area of the circle
Step 4
Find the cost
Multiply the total area by
so
