Answer:
The first is a solution, but the second is not
Step-by-step explanation:
we know that
If a ordered pair is a solution of a linear equation, then the ordered pair must satisfy the linear equation (makes the equation true)
we have
<u><em>Verify the first ordered pair</em></u>
Part a) we have (2,-9)
For x=2, y=-9
substitute in the linear equation
----> is true
so
The ordered pair satisfy the equation
The ordered pair is a solution of the equation
<u><em>Verify the second ordered pair</em></u>
Part b) we have (3,-6)
For x=3, y=-6
substitute in the linear equation
----> is not true
so
The ordered pair not satisfy the equation
The ordered pair is not a solution of the equation
26 rounded to 30 22 rounded to 20
9514 1404 393
Answer:
139.39 in
Step-by-step explanation:
The length of a semicircle of diameter D is ...
C = (1/2)πD
For the given diameter of 27 inches, the length of the curved edge of the figure is ...
C = 1/2(3.14)(27 in) = 42.39 in
__
The perimeter of the figure is the sum of the side lengths. Clockwise from left, that sum is ...
P = 27 + 35 + 42.39 + 35 = 139.39 . . . inches
The perimeter of the figure is 139.39 inches.