Using the digits 1, 9, 9, and 5, write a mathematical expression for each whole number from 0-15...?

Question

You may use any mathematical operations you know, but you may only use each number once in each expression and the numbers must be used in the order that i have given them to you above.

eg. A model for 6) 1+9=9+5 = 6 or -1+sqrt9+9-5 = 6

Answer 1

0)  1 + sqrt(9) - 9 + 5

1)  

2)  1 - sqrt(9) + 9 - 5

3)  

4)  -1 + 9 - 9 + 5

5)  

6)  1 + 9 - 9 + 5

7)  

8)  1 + sqrt(9) + 9 - 5

9)  

10)  

11)  

12)  -1 + 9 + 9 - 5

13)  

14)  1 + 9 + 9 - 5

15)  

Those are all I can figure out at the moment.  If I figure out any more, I'll add it to my answer.

I hope I was helpful.

Good luck!

Answer 2

that makes no sense at all....how can 9+1=9+5?

Answer 3

0.1-9+9^(1/2)+5

1.   1-9^(1/2)-9^(1/2)+5

2. [1+9^(1/2)+9^(1/2)]/5

3.

4. -1-9+9+5

5.

6. you have

7.

8.1+9^(1/2)+9-5

9.

10.-1+9^(1/2)+9^(1/2)+5

11.

12. -1+9+9-5

13.

14. 1+9+9-5

15.

thats all i got

Answer 4

0: 1-9+sqrt(9)+5

1: (((1)^9)^9)^5

2: 1+ 9 - sqrt(9) -5

3: -1-(9/9)+5

4: -1+9-9+5

5: 1-(9/9)+5

6: 1+9-9+5

7: 1+ (9/9)+5

8: 1+ sqrt(9) + 9 -5

9: 1(sqrt(9)^(sqrt(9-5)))

10: -1+sqrt(9)+sqrt(9)+5

11: (1*9)+sqrt(9-5)

12: -1+9+9-5

13: 1(9+9-5)

14: 1+9+9-5

15: (1^9)*sqrt(9)*5