Robert is preparing a poster-board presentation. He wants to make a decorative pattern with 10 squares to fill part of the poster. The area of the poster board is 720 square inches. To find how much space Robert will have left for his presentation if he uses squares with 7-inch sides, evaluate 720 - 10s ^ 2 when s = 7 (1 point)

Question

Robert is preparing a poster-board presentation. He wants to make a decorative pattern with 10 squares to fill part of the poster. The area of the poster board is 720 square inches. To find how much space Robert will have left for his presentation if he uses squares with 7-inch sides, evaluate 720 - 10s ^ 2 when s = 7 (1 point)

230 square inches

34,790 square inches

9 940 square inches

580 square inches

Answer 1

To find the area of one square, we use the formula for the area of a square, A = s^2 where s is the length of each side. In this case, s = 7.

So, the area of one square is 7^2 = 49 square inches.
Since Robert wants to use 10 squares, the total area used by the squares is 10 * 49 = 490 square inches.
Therefore, the remaining space for Robert's presentation is 720 - 490 = 230 square inches.
So, the answer is 230 square inches.

Answer 2

To find the area of each square, we need to square the length of one side, which is 7 inches. So the area of each square is 7^2 = 49 square inches.

Since Robert wants to use 10 squares, the total area of the squares will be 10 * 49 = 490 square inches.

To find how much space Robert will have left for his presentation, we subtract the total area of the squares from the area of the poster board: 720 - 490 = 230 square inches.

Therefore, Robert will have 230 square inches left for his presentation if he uses squares with 7-inch sides.

Answer 3

To find the space Robert will have left for his presentation, we need to subtract the total area of the squares from the area of the poster board.

First, let's calculate the area of one square with 7-inch sides.
The formula to find the area of a square is A = s^2, where s is the length of one side.
For a square with 7-inch sides, the area would be A = 7^2 = 49 square inches.

Now, let's find the total area of all 10 squares by multiplying the area of one square by the number of squares:
Total area of squares = 49 square inches/square * 10 squares = 490 square inches.

To find how much space Robert will have left for his presentation, we subtract the area of the squares from the area of the poster board:
Remaining space = 720 square inches - 490 square inches = 230 square inches.

Therefore, the answer is 230 square inches.