Dard 7.40) - supporting
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?
@ 0.5 second per inch
. 0.5 inch per second
©2 inches per second
1 inch per 0.5 second

  the correct choice is marked

step-by-step explanation:

the first two graphs show multiple turning points. the last graphs matches the description in every detail.

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11-1 > 1-1+a

-12 > a

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

13.46

step-by-step explanation:

16.80 x .20 = 13.46