Solve the problem.P(x) = -x3 + 15x2 - 48x + 450, x ? 3 is an approximation to the total profit (in thousands of dollars) from the sale of x hundred thousand tires. Find the number of hundred thousands of tires that must be sold to maximize profit.
A. 3 hundred thousand
B. 10 hundred thousand
C. 5 hundred thousand
D. 8 hundred thousand
Answer: D
Mathematics
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Use the given conditions to write an equation for the line in slope-intercept form.Passing through (5, 3) and perpendicular to 
A. y = 
x - 
B. y = - 
x + 
C. y = - 6x - 23
D. y = - 
x - 
Mathematics
Find the perimeter.
A. 125 m B. 130 m C. 170 m D. 85 m
Mathematics
Solve the equation. Express irrational solutions in exact form and as a decimal rounded to three places.log2(x2 - 16) = 7
A. {-4
, 4
} ? {-10.583, 10.583}
B. {12}
C. {-
, 
} ? {-8.062, 8.062}
D. {-12, 12}
Mathematics
Find the sum of the series as a function of x.
A. 
B. 
C. - 
D. - 
Mathematics