Solve the problem.Two ships leave a harbor together traveling on courses that have an angle of 125° between them. If they each travel 524 miles, how far apart are they to the nearest mile?
A. 484 mi
B. 1860 mi
C. 41 mi
D. 930 mi
Answer: D
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Solve the variation problem.The pressure of a gas varies jointly as the quantity of the gas (measured in moles) and the temperature and inversely as the volume of the gas. Suppose that the pressure of a particular gas is 
(kPa) when the quantity is 
the temperature is 
and the volume is 
Find the pressure of that gas when the number of moles is 9,
the temperature is 
and the volume is 
A. 1170 kiloPascals
B. 2160 kiloPascals
C. 1125 kiloPascals
D. 2250 kiloPascals
Find the domain of the function.
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The given marginal function has x measured in years and MR(x) in hundreds of dollars per year. Use numerical integration on a graphing calculator to find the total revenue over the given period.MR(x) = 0.22x4 - 6.27x3 + 30.6x2 + 87.1x (0 ? x ? 6)
A. $2081.66 B. $5782.40 C. $208,166.40 D. $51,386.40
Solve the equation by making an appropriate substitution.x4 - 22x2 - 75 = 0
A. {- 
, 
, -5i, 5i}
B. {-25, 3}
C. {-5, 5, -i
, i
}
D. {5, i
}