Answer:It will take Mary about 2 minutes to run one lap.
Step-by-step explanation:
c = 2r = 2 * 3.14 * 25
2 * 3.14 = 6.28
6.28 * 25 = 157
157/ 75 = 2 w/ remainder of 7
Round down and it is roughly 2 minutes.
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Answer:
Step-by-step explanation:
BBBB? I had to have at least 20 characters...
Y = x
when x < -1
not equal to (≤) so no solid circle.
plot points
x | y
-1, -1
-2, -2
-3, -3
Next one is...
y = -x
when x ≥ -1
solid circle for equal to
look at points
x | y
-1, 1
0, 0
1, -1
2, -2
As you can see it's the last graph in bottom right corner.