Solve the problem.The population of a particular city (in thousands) can be modeled by the functionP(t) = 
,where x is the number of years after 1920. In what year was the growth rate of the population the fastest?
A. 1990
B. 1960
C. 1980
D. 1970
Answer: C
Mathematics
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Use the Trapezoidal Rule with n = 4 steps to estimate the integral.
A. 
B. 
C. 
D. 
Mathematics
Evaluate the surface integral of the function G over the surface S.G(x, y, z) = x2y2z2; S is the surface of the rectangular prism formed from the planes x = ±3, y = ±1, and 
A. 135 B. 405 C. 270 D. 9
Mathematics
Solve the system.
A. x = 1, y = -24, z = 8, w = -2 B. x = 1, y = -4, z = 4, w = -1 C. x = 1, y = -4, z = 16, w = -1 D. x = 6, y = -24, z = 16, w = -6
Mathematics
Find the equation of the line passing through the indicated two points in standard form.(2, -3) and (-7, 4)
A. 5x - 11y = -9 B. -7x + 9y = -13 C. 7x + 9y = -13 D. -5x + 11y = -9
Mathematics