Question

Pomoże ktoś?? tylko proszę żeby to było w 100% dobrze;p DAJE NAAAAJ!

^3= to jest do potęgi 3

Oblicz:

1. 4,5 * 1 2/3 - 3,75=?

2. (0,8 * 3/8 - 4/5) : 0,75=?

3. 4 2/5 : 11 + 1/5 + 3,4=?

4. 4/5 - ( 1,3 * 5/13 - 0,8)=?

5. 2 1/3 - 9 : 4,5=?

6. - 1,5 : 9/8 + 5 5/6 * 3/7=?

7. [ 1,75 + (-1 1/6)] : 2 5/8=?+

8. (16 : 4/7 - 13 2/3) ; 43=?

9. (2/3 - 1,8 * 2 1/3) * (-1/3)=?

10. 5* [ 0,6 - 3/5 : (-2)]=?

11. - 8 : 1 1/4 + 7 2/5 + 9 =?

12. (3 1/2)²=?

13. (-2 2/3)^3=?

14. (-1 2/7)²=?

15. (-1 1/5)^3=?

16.

√1 7/9=?

17.

√3 1/16=?

18.

√2 1/4=?

19.

√3 13/36=?

20.

√2 2/49=?

21.

√1 17/64=?

Answer 1

1. 4,5*1 2/3-3,75=45/10*5/3-375/100=15/1-375/100=1500/100-375/100=1125/100=45/4=11,25

2. (0,8*3/8-4/5):0,75=(8/10*3/8-4/5):75/100=(3/10-4/5):75/100=(3/10-8/10):75/100=-5/10:75/100=-5/10*100/75=-2/3

3. 4 2/5:11+1/5+3,4=22/5:11+1/5+34/10=22/5*1/11+1/5+34/10=2/5+1/5+34/10=4/10+2/10+34/10=40/10=4

4.

4/5-(1,3*5/13-0,8)=4/5-(13/10*5/13-8/10)=4/5-(1/2-8/10)=4/5-(5/10-8/10)=4/5-(-3/10)=4/5+3/10=8/10+3/10=11/10=1 1/10

5.

2 1/3-9:4,5=7/3-9:45/10=7/3-9*10/45=7/3-2=7/3-6/3=1/3

6.

-1,5:9/8+5 5/6*3/7=-15/10:9/8+35/6*3/7=15/10*8/9+5/2=1/2*8/3=4/3+5/2=8/6+15/6=23/6=3 56

7.

[1,75+(-1 1/6)]:2 5/8=175/100-7/6:21/8=175/100-7/6*8/21=175/100-1/3*4/3=175/100-4/9=1575/900-400/900=1175/900=47/36=1 11/36

8.

(16:4/7-13 2/3):43=(16*7/4-41/3):43=(28/1-41/3):43=(84/3-41/3):43=43/3:43=43/3*1/43=1/3

9.

(2/3-1,8*2/13)*(-1/3)=(2/3-18/10*7/3)*(-1/3)=(2/3-28/5)*(-1/3)=(10/15-84/15)*(-1/3)=-74/15*(-1/3)=74/45=1 29/45

10.

5*[0,6-3/5:(-2)]=5*[6/10-3/5:(-2)]=5*[6/10-3/5*(-1/2)]=5*(6/10+3/10)=5*9/10=9/2=4,5

11.

-8:1 1/4+7 2/5+9=-8:5/4+37/5+9=-8*4/5+37/5+9=-32/5+37/5+9/1=-32/5+37/5+45/5=50/5=5

12.

(3 1/2)²=(7/2)²=49/4=12,25

13.

(-2 2/3)³=(-8/3)³=(-512/27)=-18 26/27

14.

(-1 2/7)²=(-9/7)²=81/49=1 32/49

15.

(-1 1/5)³=(-6/5)³=-216/125=-1 91/125

16.

√1 7/9=√16/9=4/3=1 1/3

17.

√3 1/16=√49/16=7/4=1 3/4

18.

√2 1/4=√9/4=3/2= 1,5

19.

√3 13/36=√121/36=11/6=1 5/6

20.

√2 2/49=√100/49=10/7=1 3/7

21.

√1 17/64=√81/64=9/8=1 1/8

 

Myślę że pomogłam ;) Liczę na naj ;)