Solve the problem.The winner of the 1998 Peoria 500 (mile) race was Serge Bologna, with an average rate of 175.786 mi per hr. What was his time (to the nearest thousandth of an hour)?
A. 0.786 hr
B. 12.844 hr
C. 2.844 hr
D. 2.919 hr
Answer: C
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The terminal side of ? in standard position contains the given point. Find the values of the six trigonometric functions of ?.(5, -12)
A. sin ? = 
cos ? = - 
tan ? = - 
csc ? = 
sec ? = - 
cot ? = - 
B. sin ? = - 
cos ? = 
tan ? = - 
csc ? = - 
sec ? = 
cot ? = - 
C. sin ? = - 
cos ? = 
tan ? = - 
csc ? = - 
sec ? = 
cot ? = - 
D. sin ? = - 
cos ? = 
tan ? = - 
csc ? = - 
sec ? = 
cot ? = - 
Find the exact value of the expression.sin 20° cos 40° + cos 20° sin 40°
A. 
B. 
C. 
D. 
Given the polynomial function f(x), find the rational zeros, then the other zeros (that is, solve the equation 
), and factor f(x) into linear factors.f(x) = 
x3 - 
x2 - 
x + 
A. 
, 
, 
; f(x) = 
B. 
, 
, 
; f(x) = 
C. 
, 
, 
; f(x) = 
D. 
, 
, 
; f(x) = 
Solve the equation in the real number system.3x3 - x2 - 21x + 7 = 0
A. { -3, 
, - 
}
B. 
C. { 3, 
, -
}
D. 