Answer:

Step-by-step explanation:
The radius of the circle is 7 cm.
The two legs of the triangles are 7cm as well.
Area of a trinagle is ( base × height )/2.

Multiply the value by 2 since there are two triangles.

Calculate the area of the circle.

The radius is given.

Take
as 


Subtract the area of the two triangles from the area of the whole circle.

The area of the shaded part is 105 cm². The total area of the shape is 154cm².

We have a piecewise function.
Therefore, to find the function, we must evaluate each domain separately.
We have then:
For
:
The function for this domain is:

For
:
The function for this domain is:

Where,

Substituting:

For
:
The function for this domain is:
Answer:
2
(
6
x^
3
−
30
x
^2
+
2
x
−
1
)
Step-by-step explanation:
Answer:
y = 8x -25
Step-by-step explanation:
The two-point form of the equation of a line can be used.
y = (y2 -y1)/(x2 -x1)(x -x1) +y1
y = (7-(-1))/(4-3)(x -3) +(-1)
y = 8(x -3) -1
y = 8x -25 . . . . slope-intercept form of the equation
_____
We don't know what you're starting with, so we don't know how to "complete the equation." Perhaps the above equation is sufficient for the task.