A scuba diver is diving at a constant rate when her team on the surface requests a status update. She
looks at her watch which says her elevation is 18 feet
below sea level. 8 seconds later, her elevation is 20
feet below sea level.
2. How many more seconds until she reaches her
goal depth of 50 feet? Explain or show your
reasoning.

-0.25 ; 120 seconds 72 seconds

Step-by-step explanation:

Dive rate is constant :

Change in elevation after 8 seconds :

18 feets to 20 feets below

Rate of change = distance / time

(18 - 20) feets / 8 seconds

(-2 / 8) = - 0.25 feets per second

To reach 50.feets :

She needs to cover (50 - 20) = 30 feets

Time = distance / speed ; 30 feets / 0.25 = 120 seconds

alot

step-by-step explanation:

its a wood chuck that can chuck wood

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.