Answer:
15a
Step-by-step explanation:
Because 5(a + a + a) = 5 * (3a) = 15a
To solve these types of problems, we need to convert the two values into the same form.
We know that 1 = 1.00, as adding zeroes to the end of a decimal doesn't change the value.
To change a decimal into a percentage, we multiply the decimal by 100 and add a percent sign.
1.00 * 100 = 100%
Therefore, 1 = 100%
Because 120% is greater than 100%, thus,
120% > 1
The correct answer is 400.
<u>Given:</u>
Each circle has a diameter of 2 inches each.
The outer square has a side length of 4 inches and the square ABCD has a side length of 2 inches.
<u>To find:</u>
The area of the shaded region.
<u>Solution:</u>
Each circle has a diameter of 2 inches. The square ABCD is at the center of each circle so it has a side length of 1 inch.
To determine the area of the shaded region, we subtract the area of the quarter-circles in the square ABCD from the area of the square ABCD.
The area of a quarter-circle 
All the quarter-circles have a radius of 1 inch.
The area of 1 quarter-circle 
The area of 4 quarter-circles 
So the area of the quarter-circles in the square ABCD is 3.1514 square inches.
The area of a square 
The area of square ABCD 
The area of the shaded region 
The area of the shaded region is 0.8585 square inches.