Answer:
The area of the sector is
Step-by-step explanation:
step 1
Find the area of the circle
The area of the circle is equal to
we have
----> the radius is half the diameter
substitute
step 2
Find the area of a sector with a central angle of (2pi/3)
Remember that
The area of subtends a central angle of
so
by proportion
Let
x----> the area of the sector
Answer:
Step-by-step explanation:
The irregular polygon is made of a large rectangle with two smaller rectangles cut out of it. Therefore, we can find the area of the large rectangle and subtract these two smaller rectangles:
.
Answer:
see below
Step-by-step explanation:
h(x) = (x − 5)^2 − 7
This is in vertex form
y = a( x-h)^2 + k
where ( h,k) is the vertex and x=h is the axis of symmetry
( 5,-7) is the vertex and x=5 is the axis of symmetry
