I\'m having some trouble with the last 2 parts. I tried using m= -v/u Please see

Question

I'm having some trouble with the last 2 parts. I tried using m= -v/u

Please see the bottom image for my attempted answers.

A 18 cm tall object is placed in front of a concave mirror with a radius of 33 cm. The distance of the object to the mirror is 95 cm. Calculate the focal length of the mirror 1.65×101 cm You are correct. Your receipt no. is 161-7334 revius Tries Calculate the image distance. 2.00x101 cm You are correct. Your receipt no. is 161-3602 Previous Tries e the magnification of the image (Remember, a negative magnification corresponds to an inverted image). Submit Answer Incorrect. Tries 8/10 Previous Tries Calculate the magnitude of the image height. Submit Answer Tries 0/10

Explanation / Answer

M = -v/u = -20/95 = - 0.2105cm = -2.10 × 10^-1cm

Image size I = M × object size = 0.2105×18 = 3.789cm = 3.79cm.

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