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um.....can u explain what u did?? i don think i get it

The question is: A) A wheel on a fixed axle is rotating at 200 revolution per minute. Convert this angular velocity into radians per second, giving your answer to the nearest whole number. B) If the radius of the wheel is 0.3 metres, how far, to the nearest metre, will a point on the outside...

use the defination of a parabola and perpendicular distance formaula to find the equation og the parabola with focus S(-1,1) and directrix y=x-2

Thank you :)

The rungs of a ladder decrease uniformly in length from 40 cm at the bottom rung to 30cm at the top rung. How many rungs are there if their total length is 5.25m?