For the complex number, state the real part, the imaginary part, and identify the number as real, pure imaginary, or nonreal complex.- 
A. Real part: 
; Imaginary part: -1; Real
B. Real part: 0; Imaginary part: -
; Pure imaginary
C. Real part: -
; Imaginary part: 0; Real
D. Real part: -1; Imaginary part: 
; Pure imaginary
Answer: C
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Use the given values of a and b and express the given limit as a definite integral.
?xk, a = -5, b = 4
A. 
B. 
C. 
D. 
Solve the problem.A license plate is to consist of 2 letters followed by 4 digits. Determine the number of different license plates possible if repetition of letters and numbers is not permitted.
A. 3,276,140 B. 3,276,000 C. 3,275,980 D. 6,760,000
Solve the problem.Several years ago, a large city undertook a major effort to encourage carpooling in order to reduce traffic congestion. The accompanying table shows the number of carpoolers, in thousands, from 1995 to 2000. Use regression to obtain a function src="https://sciemce.com/media/4/ppg__file0518192109__f1q28g4.jpg" style="vertical-align: -15.0px;" />
A. f(x) = 4.29 + 5.14 ln x
B. f(x) = 4.22 + 5.25 ln x
C. f(x) = 4.40 + 5.32 ln x
D. f(x) = 4.33 + 5.17 ln x
that models the data, where 
corresponds to 1995, 
to 1996, and so on. Round the constants a and b to the nearest hundredth.
Find the standard form of the equation of the parabola with the given characteristics.
?
Focus: 
; directrix: 
?
A. 
B. 
C. 
D. 
E. 