The carpet in the school library needs to be replaced. The dimensions of the library floor or shell each square foot of cart bit cost $1.25. What is the total cost of the new carpet for the library

To find the cost, we must:

Doing this, we get that the cost is: $3,815, and the correct option is B.

Carpet:

The carpet can be divided into:

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Area of the rectangle:

The area of a rectangle of dimensions l and w is given by:

In this question, the dimensions are l = 56 ft, w = 38 ft, so the area, in square feet, is:

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Area of a right triangle:

The area of a right triangle of legs a and b is given by:

In this question, the legs are a = 56, b = 38, so the area, in square feet, is:

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Total area:

The total area is the sum of the area of the rectangle with the area of the right triangle, thus:

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Cost:

Each square foot costs $1.25.

There are 3,052 square feet. So, the cost is:

Thus, the cost is $3,815, and the correct option is B.

A similar question is found at

215.92 dollars is the answer

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a