Solve.The equation that represents the proper traffic control and emergency vehicle response availability in a small city is 
where P is the number of police cars on active duty and F is the number of fire trucks that have left the firehouse in response to a call. In order to comply with staffing limitations, the equation 
is appropriate. The number of police cars on active duty and the number of fire trucks that have left the firehouse in response to a call cannot be negative, so 
style="vertical-align: -4.0px;" /> and 
Graph the regions satisfying all the availability and staffing requirements, using the horizontal axis for P and the vertical axis for F. If 4 police cars are on active duty and 5 fire trucks have left the firehouse in response to a call, are all of the requirements satisfied?
A. 
; Yes
B. 
; No
C. 
; No
D. 
; Yes
Answer: D
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Use the formula for an to find the general term for the arithmetic sequence.5, 0, -5, . . .
A. an = 10n - 5 B. an = -5n + 10 C. an = n - 5 D. an = 5n - 5
Rationalize the numerator. Assume all variables represent positive numbers.
A. 
B. 
C. 
D. 
Identify which of the graphs could be the graph of a polynomial function.f(x) = 6x3 - 7x - x5
A. 
B. 
C. 
D. 
Solve.A collection of dimes is arranged in a triangular array with 14 coins in the base row, 13 in the next, 12 in the next, and so forth. Find the value of the collection.
A. $5.25 B. $10.50 C. $1.05 D. $21.00