Answer:

Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form
or 
In this problem
Let
x------> the number of gallons
y------> the number of miles
the relationship between the number of miles and the gallons of gas represent a linear direct variation
The constant of proportionality k is equal to the slope m

therefore
the equation of the linear equation

Answer:
25 Seconds.
Step-by-step explanation:
You need to know how many seconds it takes to read the bottom of the lake.
If, each second, the anchor is falling 0.7 feet, then you need to know how many times it falls 0.7 feet.
This is done by dividing 17.5 by 0.7, which is 25 seconds.
Answer:12
Step-by-step explanation:
Trust me bro
Answer:
The exponential model is
.
Step-by-step explanation:
The exponential model can be modelled by the following mathematical expression:
(1)
Where:
- Independent variable.
- Dependent variable.
- Coefficients.
If we know that
and
, then we get the following system of equations:
(2)
(3)
If we divide (3) by (2), we calculate the value of
:



And by (2), we determine the value of
:


The exponential model is
.