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 7 police cars are on active duty and 3 fire trucks have left the firehouse in response to a call, are all of the requirements satisfied?



A.
 ; Yes
B.
 ; Yes
C.
; No
D.
; No

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Answer: B

Mathematics

Rewrite the number in the statement in scientific notation.A business projects next year's profits to be $650,000,000.

A. 6.50 × 107 B. 6.50 × 10-9 C. 6.50 × 109 D. 6.50 × 108

The stack plot below shows the value of each of Danny's investments. The stack plot contains three regions. The uppermost unshaded region represents the value of Danny's investment in individual stocks. The center shaded region represents the value of Danny's investment in mutual funds and the bottom region in black represents the value of Danny's investment in a CD. The thickness of a region at a particular time tells you its value at that time. Use the graph to answer the question.In which year was the total value of Danny's investments the greatest?

A. year 8 B. year 4 C. year 0 D. year 5

Graph the expression on each side of the equals symbol to determine whether the equation might be an identity. +  = csc2 x

A. Not an Identity B. Identity

Plot the number in the complex plane.3 + 4i

A.
 
B.
 
C.

D.