A ship headed due east is moving through the water at a constant speed of 10 miles per hour. However, the true course of the ship is 60°. If the currents are a constant 5.0 miles per hour, what is the ground speed of the ship?
?
Apply the rules regarding the use of significant digits after all computations are complete.
?
A. 9 mph or 7 mph
B. 8.7 mph
C. 6.7 mph
D. 7.7 mph or 6.7 mph
E. 7.7 mph
Answer: B
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Use a calculator to approximate the number. (Round your answer to three decimal places.)
?
?
A. 5.000.000 B. 3.487 C. 1.487 D. 2.487 E. -2.487
Find the apportionment asked for.A small city has 50 police officers to be apportioned among 8 precincts based on the population of each precinct. The populations are given in the following table. 
Find the apportionment for the Seventh Precinct using Webster's method.
A. 4 B. 5 C. 6 D. 7
Find the equation for the level surface of the function through the given point.f(x, y, z) = 
+ 
, (5, e6, e-4)
A. -5e-4 - 5e6 + 4e5 + 1 = 
+ 
B. -4e-4 - 6e6 + 4e5 + 1 = ln ? + 1 + t et
C. -4e-4 - 6e6 + 4e5 - 9 = 
+ 
D. -4e-4 - 6e6 + 4e5 + 1 = 
+ 
Completely factor the polynomial or state that the polynomial is prime.x3 + 40x2 + 400x
A. x(x - 20)2 B. x(x + 20)(x - 20) C. prime D. x(x + 20)2