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