Chapter 4 test
  • 1. Answer to problem 1
A) 14m
B) m4
C) 10m
D) m21
E) m10
  • 2. Answer to problem 2
A) 16y24
B) 160y
C) 16y10
D) 10y24
E) 10y10
  • 3. Answer to problem 3
A) 5
B) 0
C) 1
D) n
E) 5n
  • 4. Answer to problem 4
A) 81x6y7
B) 81x8y12
C) 7x16y7
D) 12x8y12
E) 12x6y7
  • 5. Answer to problem 5
A) x12
B) 1/x8
C) x-12
D) 8x
E) x8
  • 6. Answer to problem 6
A) x5/7
B) 14/x12
C) 9/x6
D) None of these
E) 6/x3
  • 7. Answer to problem 7
A) None of these
B) 2/x4
C) 5/x9
D) 2/4x
E) 6/x3
  • 8. Answer to problem 8
A) (5m)4/3
B) (25m)3/4
C) 25m4/3
D) 5m3/4
E) None of these
  • 9. Answer to problem 9
A) x=4.2
B) x=12.1
C) None of these
D) x=26.9
E) x=3.8
  • 10. Answer to problem 10
A) n=55
B) n=20
C) n=16
D) None of these
E) n=27
  • 11. Answer to problem 11
A) x=.54
B) x=.12
C) None of these
D) x=.23
E) x=0.45
  • 12. Answer to problem 12
A) x=3.33
B) None of these
C) x=2.16
D) x=5.11
E) x=6.12
  • 13. Answer to problem 13
A) x=2.08
B) x=2.45
C) None of these
D) x=1.95
E) x=4.41
  • 14. Answer to problem 14
A) x=-3.65
B) x=-2.99
C) x=14.51
D) x=3.96
E) None of these
  • 15. Answer to problem 15
A) Decay, because b>1
B) Decay, because b<1
C) Growth, because b<1
D) Decay, because b>1
  • 16. Answer to problem 16
A) part 1: y=16.82, part 2: y=2.6305
B) part 1:y=49.029, part 2: y=3.883
C) part 1: y=16.825, part 2: y=1.05
D) part 1: y=49.029, part 2: y=2.630
E) None of these
  • 17. Answer to problem 17
A) x=6.2 years
B) x=9.8 years
C) None of these
D) x=2.8 years
E) x=4.7 years
  • 18. Answer to problem 18
A) $78.953.38
B) None of these
C) $58,372.25
D) $60,220.20
E) $65,980.44
  • 19. Answer to problem 19
A) 15.9 inches
B) 12.9 inches
C) 13.8 inches
D) None of these
E) 16.4 inches
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