Multiply.(-4m + 5)(-2m2 + m - 9)
A. -6m2 + 41m - 45
B. 8m3 - 14m2 + 41m - 45
C. 8m3 + 41m - 45
D. 8m3 - 6m2 + 41m - 45
Answer: B
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Write in exponential form. Assume all variables are positive real numbers.
A. x3/15 B. x1/15 C. x3/5 D. x5/3
Complete.1400 mm = 
m
A. 140 B. 1.4 C. 14 D. 0.14
Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.8w + 8x - 5y - 4z = 207w + 6x - 8y - 4z = -18w - 8x + 6y + 5z = -34-5w - 4x + 8y + 8z = 1
A. (1, 5, 4, 2) B. (-1, 4, -5, 2) C. (-1, 5, 4, -2) D. No solution
Determine i) the domain of the function, ii) the range of the function, iii) the domain of the inverse, and iv) the range of the inverse.f(x) = 
A. f(x): D = 
, R = 
;
f-1(x): D = 
, R = 
B. f(x): D = 
, R = 
;
f-1(x): D is all real numbers, R = 
C. f(x): D = 
, R = 
;
f-1(x): D = 
, R = 
D. f(x): D = 
, R is all real numbers;
f-1(x): D is all real numbers, R = 