Estimate. 18,185 +493
Part 1 out of 2
18,185 to the nearest ten thousand is .
493 to the nearest hundred is .

The general form of the quetion of a circle is ax^2+by^2+cx+dy+e=0 where a=b=0 if the circle has a radius of three units and the center lies on the y axis which set of values of a, b, c, d, and e might correspond to the circle

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

What is the value of x when x + 7 = 21?