Please help mem

It’s actually choice 4) -0.04

Step-by-step explanation:

You can see that as the years increase (when getting older), the size of the pupil decreases. So with that information, you can already eliminate choice 1 and 2 because they both show the rate of change increasing (which is wrong) and choice 3 and 4 shows the rate of change decreasing (which is right). To solve and find the right number, you can take any two numbers, subtract them, and divide them by 10. They reason why you do this because to want to find the difference in 10 years, and you divide it by 10 because the question wants us to find it per year (1 year).

Steps:

You can take 4.3 and 4.7, subtract to get -0.4, and divide it by 10 to get -0.04

You can also take 3.1 and 3.5, subtract to get -0.4, and divide it by 10 to get -0.04

-0.04

Hope this helps! :)

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it

y=sec x is the correct answer

~batmans wife dun dun