exam Maths Puzzle Numerical Ability

1) In a circle, a central angle of 1/3 radian intercepts an arc of 3 centimeters. Find the length, in centimeters, of a radius of the circle.

2) A circle has a radius of 1.7

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exam Other Question

Let f(x)=7x an g(x)= 2x^2-9. find the following:

(fog)(x) (gof)(x) (fog)(2) and (gof)(-1)
not sure what i am doing,,,thanks for your help Please help!!!!!

1) Number Problem: Find two consecutive positive integers such that the sum of their squares is 85.

2) 2x^2-5x=3

3) 3x^2-2x+1=0

4)Construction: A gar