Open Question: Visual angle and image size on the retina?

Please tell me the formulas to figure out the answers for each of the problems so that I know how to do them:

Suppose that the focal length of the eye (the distance from the lens to the retina) is 2 cm. Your blind spot subtends an angle of roughly 5 deg. How big is the blind spot (in cm) on your retina? (Use the focal length as the distance in the visual angle equation).

The fovea is roughly 2 deg of visual angle. What is the diameter of the fovea in cm? (Use 2 cm again as the focal length).

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Open Question: use given zero to find the remaining zeros of the polynomial?

use given zero to find the remaining zeros of the polynomial?

g(x) = x^3 + 3x^2 + 25x + 75 Zero: -5i

if one zero is (- 5i), then (5i) is also a zero

(x + 5i)(x - 5i) = x^2 + 25

long division by (x^2 + 25) yields the quotient: (x + 3)

the remaining zero is: x = - 3

check

one problem at a time.

@ƒ

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Open Question: Where does h'(x) = 0.14 ?

Consider the graphs below. Both functions have a sharp corner at x=50.

m(x)
https://instruct.math.lsa.umich.edu/webwork2_course_files/ma115-042-f12/tmp/gif/kostakoe-3736-sethomework19prob12image1.png

n(x)
https://instruct.math.lsa.umich.edu/webwork2_course_files/ma115-042-f12/tmp/gif/kostakoe-3736-sethomework19prob12image2.png

Let h(x)=n(m(x)). Find a point x where h'(x)=0.14
x = ????

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