Answer the question asked. When necessary, round to the nearest hundredth.A boat moves 6 kilometers upstream in the same amount of time it moves 20 kilometers downstream. If the rate of the current is 6 kilometers per hour, find the rate of the boat in still water.
A. 6 km/hr
B. 11
km/hr
C. 8
km/hr
D. 2
km/hr
Answer: B
Mathematics
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Evaluate the derivative of the given function for the given value of x.y = 
, x = -3
A. 
B. 
C. - 
D. 
Mathematics
Find the missing angle or angles.
A. 79° B. 61° C. 69° D. 37°
Mathematics
Refer to the weighted voting system 
and the Shapley-Shubik definition of power. (The five players will be called P1, P2, P3, P4, and P5.)If player P5 is pivotal in a sequential coalition, which player does not appear before P5?
A. P1 B. P5 is never pivotal C. P2 D. P3 E. P4
Mathematics
A state map has county lines as shown. If the counties are to be colored and no two counties which share a border can have the same color, what is the minimum number of colors required for this map? Explain your solution.
What will be an ideal response?
Mathematics