Answer:
[tex]x^{2} +y^{2}=r^{2}[/tex]
Step-by-step explanation:
We know that the center-radius form of the circle equation is in the format (x – h)2 + (y – k)2 = r2, with the center being at the point (h, k) and the radius being "r".
As given the center of circle q is origin ie,(0,0);

Now substitute the point P in the equation of the circle as it lies on it.


Answer:
{2, 4}
Step-by-step explanation:
Intersection of given sets would be {2,4}.
Answer:
7500 meters
Step-by-step explanation:
Isabella walked 2 × 2.5 km = 5 km. Together, they walked ...
2.5 km + 5 km = 7.5 km = 7.5×1000 m = 7500 m
Cole and Isabella walked 7500 meters altogether.
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"kilo-" is a prefix meaning "one thousand". So one kilometer is 1000 meters. Then 7.5 kilometers is 7.5 times 1000 meters, or 7500 meters.
Answer:
mi = 45(hr)
hr = mi/45
Step-by-step explanation:
Distance = 45 mph times the number of hours (time) D = 45t
time in hours = the number of miles (Distance) divided by 45 mph t = D/45