A rectangle exists as a quadrilateral. The correct option is c, which is A rectangle that is 5.4 in
16.2 in.
<h3>What is rectangle?</h3>
A rectangle exists as a quadrilateral with opposite sides parallel and equivalent to each other. Also, all the angles of the rectangle exist equivalent to 90°.
As it exists given that the cylindrical container has three tennis balls that exists 5.4 inches in diameter which exist lying on its side and passes through an x-ray scanner that scans from the top only.
Now, the cylinder exists lying on its side, therefore for the x-ray machine, the side will be the top of the cylinder. thus, the cylinder will look like a rectangle, like the way it exists shown below.
Hence, the diameter of 3 balls will be the length of the rectangle while the width will be the diameter of 1 ball.
The correct option is c, which exists A rectangle that is 5.4 in
16.2 in.
To learn more about Rectangle refer to:
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The height is given as 9 ft. this is also the radius of the circle.
The base of the triangle would be 2 times the radius = 18 feet.
The area of the triangle is 1/2 x 9 x 18 = 81 square feet.
The area of the semi circle is : 1/2 x PI x r^2 = 1/2 x 3.14 x 9^2 = 127.17
The area of the shaded region is the area of the triangle minus the area of the semi circle:
127.17 - 81 = 46.17 square feet.
(f+g)(x) just means f(x) + g(x)

Choice B
It's not possible to do any of that without seeing any of their work.
By the way, that system of equations has no solution.