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clark4590
07.11.2019 •
Mathematics
Asubmarine is at the surface of the ocean. it begins its descent at a rate of 100 feet per minute. write a linear model in the form d(t)=mt+b where d(t) represents the depth of the submarine relative to sea level, in feet, after t minutes into its descent. be sure to include "d(t) =" in your answer. (note: when the submarine is below sea level, its depth is a negative quantity)
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Ответ:
d(t) = -100t
Step-by-step explanation:
The general expression for the linear model is:
Since the submarine already starts at sea level, b=0:
The constant "m" is the rate at which the submarine descends in feet per minute. Considering depth as a negative quantity, m=-100
The linear model that represents the depth of the submarine relative to sea level, in feet, after t minutes is d(t) = -100t.
Ответ:
d(t)=-100t
Step-by-step explanation:
d is the independent variable and t is the dependent variable. The rate of descent has to be negative so that the altitude decreases compared to sea level. The initial sea level is 0.
Ответ:
3,500,000
Step-by-step explanation:
(1×7)×500000 or 7×500000