MATH 1111 Practice Final Exam #4 Key

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MATH 1111 Practice Final Exam #4 1.

Key 18. ( 1; 0) ; (9; 0)

6y 4 x3

2x + 3 2. (x + 1) (x + 2) (x

19. fxjx 6= 9g 1)

20. 1

3. 3x2 y. p 5 3 4. 2

5

or

5

p

3 2

1

g) (x) = (x + 4)

2 or x2 + 8x + 14

22. (5; 7) 23. 31

5. 65

6.

2

21. (f

p i 3

5

24. f

1

(x) =

4 x+4 + 1 or x x

2 25. x

2 = ln (5)

3 2 ; 0; 1

7.

26.

22 ;2 9

8.

2 5

or f0:4g

27. f5g

9. ( 1; 21]

28. 3:6 years

10. ( 7; 2) 29. x = 11; y = 11. 8

6i 30.

12. 60 hours

13.

14.

2 3

15. 182 miles 16. y = 2x

17 or 2x

y

17 = 0

17. E = 5 1

2

2 or f(11; 2)g