the depth in inches of an object as it sinks in the river is found by the equation d=0.5t where t is measured in seconds which best describes the constant of proportionality

Given:

Depth in inches of an object as it sinks in the river is found by the equation

where t is measured in seconds.

To find:

The best description for the constant of proportionality.

Solution:

We know that, in the equation , k is the constant of proportionality.

We have,

Here, constant of proportionality is 0.5.

Since, depth (y) in inches and time (t) in seconds, therefore the constant of   proportionality id 0.5 inches per second.

  or  

sin y = 7/q

7 is the opposite side length, q is the hypotenuse

tan y = 7/r

7 is the opposite side length, r is the adjacent side length

using sohcahtoa ^^^^

cos y = adjacent/hypotenuse

cos y = r/q

the answer is a. 72. but i cant answer with less than 20 characters so here's some random text talking about it.