The intensity i of light from a light bulb varies inversely as the square of the distance d from the light bulb. suppose i is 90 w/msquared when the distance is 5 m. how much farther would it be to a point where the intensity is 40 w/msquared?

What is the rotational symmetry of a wheel

The vertices of a rectangle are given in the columns of the matrix . if is found to perform a transformation, what are the coordinates of the transformed rectangle? (0, 0), (0, –3), (–3, –3), (–3, 0) (0, 0), (0, 3), (3, 3), (3, 0) (0, 0), (0, 3), (–3, –3), (–3, 0) (0, 0), (0, 3), (–3, 3), (–3, 0)

What is the equation of a line passing through (-6,5) and having a slope of 1/3