Identify the independent variable and the dependent variable.Let r be the rate (in gallons per hour) at which water is added to a tank, and let t be the number of hours it takes to fill the tank.
A. independent: t; dependent, r
B. independent: r; dependent, t
Answer: B
Mathematics
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Perform the indicated operation without the use of a calculator and express each answer in decimal notation.
A. 0.00142857 B. 700 C. 100 D. 0.07
Mathematics
Graph.-6? f(x) = -8
A. 
B. 
C. 
D. 
Mathematics
Combine the following, if possible.8
- 
A. 7
B. 8
C. 8
D. -24
Mathematics
Find the domain of the function of two variables.f(x, y) = 
+ 
A. {(x, y)| y ? 0 and y ? -1} B. {(x, y)| x ? 0 and y ? 1} C. {(x, y)| x ? 0 and y ? 0 and y ? 1} D. {(x, y)| y ? 0 and y ? 1}
Mathematics