If the center of a circle is (3, -4) and the radius is 6, which point lies on the circle? a. (-3, 4) b. (-3, -2) c. (0, 0) d. (9, -4)

There are no two natural numbers whose squares add up to 6^2 = 36. So we're looking for a point with the same x or y coordinate as our center, and the other coordinate differs by six.

Going through the options, only d has a matching coordinate (y=-4) and the x coordinates happily differ by six as well.

Choice d

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m

none cuz there are no "following statements" regarding the question

step-by-step explanation: