Answer:
c = 7
Step-by-step explanation:
Given
2x + y = c
Since (3, 1) is on the line then it makes the equation true,
Substitute x = 3, y = 1 into the equation
2(3) + 1 = c
6 + 1 = c
7 = c
<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.
Step-by-step explanation:
8 volume
Well first of all if I had a multiplication question such as 12,000×1000 of course you would know it would be 12,000 well you would always use your place value chart saying ones tens hundreds thousands and thousands and hundreds
Answer:
(5,7)
Step-by-step explanation:
8x + 7y = 89
2x + 5y = 45
Multiply the second equation by 4
4(2x + 5y) = 45*4
8x +20y = 180
Subtract the first equation
8x +20y = 180
-8x -7y = -89
--------------------------
13y = 91
Divide each side by 13
13y/13 = 91/13
y =7
Now solve for x
2x+5y =45
2(x) +5(7) = 45
2x +35 = 45
Subtract 35 from each side
2x+35-35 = 45-35
2x =10
Divide each side by 2
2x/2 = 10/2
x=5