Solve the equation.6(x + 4) = 8(x + 2.8)
A. 1.6
B. 3.2
C. 0.8
D. 23.2
Answer: C
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It is a fact that if you drop a rock, its velocity increases by 32 feet per second for each additional second it falls. We can conclude that the velocity of the rock is a linear function of time since the rock was dropped.
Answer the following statement true (T) or false (F)
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 5 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
Solve the problem.Car A (travelling north at 70 mph) and car B (traveling west at 50 mph) are heading toward the same intersection. Car A is 3 miles from the intersection when car B is 4 miles from the intersection. . Find a formula for the distance between the cars as a function of time, using the parametric equations that describe the motion of cars A and B. Using a graphing utility, find the minimum distance between the cars. When are the cars closest? 
A. d = 
; 281.21 mi; 3.32 min
B. d = 
; 1.51 mi; 0.06 min
C. d = 
; 1.51 mi; 3.32 min
D. d = 
; 1.51 mi; 3.32 h
Find f(-1) for the function f(x) = 
. Round to the nearest ten-thousandth.
What will be an ideal response?