A) kilometers, B) cubic meters
Answer:
The equation of circle A with radius AC is , or in other words option d.
Step-by-step explanation:
If the radius of this circle is AC, then we can determine the distance between points A ( - 1, 4 ) and C ( - 5,1 ) to come to the length of the radius -
Distance between A and C =
=
= = = 5 units - Which is also the length of the radius of the circle.
So if the radius is given to be 5 in length, knowing that the general equation for a circle is ( where ( h, k ) is the center and r is the radius ) if the radius is 5, , and solution must be option b / option d.
Now if the radius is AC, the center point must be point A ( circle A ). Therefore point ( - 1, 4 ) is the center, and the equation of the circle must be the following -
= - and hence our solution is option d
9514 1404 393
Answer:
100(π+3) ≈ 614 square units
Step-by-step explanation:
Assuming the rectangles are squares, the total area is that of 3 squares and a circle of radius 10.
circle area = πr² = π·10² = 100π
area of squares = 3×s² = 3·10² = 300
Then the total area is ...
300 +100π ≈ 614 . . . square units
Answer:
=176 pi units^2
Step-by-step explanation:
The surface area of a cylinder is given by
SA = 2 pi r^2 + 2 pi rh where r is the radius and h is the height
= 2 * pi * 8^2 + 2 pi *8*3
= 128pi + 48 pi
=176 pi units^2
Answer: F (x) = 5x^2 + 10