## anonymous one year ago What is the value of fraction 1 over 3x3 + 5.2y when x = 3 and y = 2? 13.4 16.4 19.4 28.4

1. anonymous

@UsukiDoll

2. UsukiDoll

$\large \frac{1}{3x^3+5.2y}$ this?

3. UsukiDoll

4. anonymous

fraction 1 over 3x3 + 5.2y when x = 3 and y = 2?

5. UsukiDoll

6. anonymous

it wont work when i draw it

7. anonymous

ya u got it right the first time sry it looked different

8. UsukiDoll

$$\color{blue}{\text{Originally Posted by}}$$ @UsukiDoll $\large \frac{1}{3x^3+5.2y}$ this? $$\color{blue}{\text{End of Quote}}$$

9. anonymous

yes

10. UsukiDoll

so we have x = 3 and y = 2. we just plug it into the equation $\large \frac{1}{3(3)^3+5.2(2)}$

11. anonymous

x=3 y=2

12. UsukiDoll

so what is 5.2 x 2 what is .. 3 x 3 x 3 x 3 ?

13. anonymous

10.4 81

14. UsukiDoll

$\large \frac{1}{81+10.4}$ what is 81+10.4 ?

15. anonymous

91.4

16. UsukiDoll

$\large \frac{1}{91.4}$ what is 1/91.4

17. UsukiDoll

it's safe to divide this time. we need the value.

18. anonymous

i dont understand what i have to divide

19. anonymous

r u there?????

20. UsukiDoll

yeah .. 1 divided by 91.4

21. anonymous

91.4

22. UsukiDoll

no.

23. UsukiDoll

it should be a super small decimal

24. anonymous

0.01

25. UsukiDoll

ya

26. anonymous

oh

27. anonymous

but that is not one of the choices

28. UsukiDoll

what are the choices?

29. anonymous

13.4 16.4 19.4 28.4

30. anonymous

those r all the options

31. UsukiDoll

then the equation must be off 3(3)+5.2(2) try compute that part only

32. anonymous

what do u mean

33. anonymous

34. UsukiDoll

what is 3 x 3 what is 5.2 x 2 or provide an accurate screenshot of the equation... otherwise all sorts of errors pop up.

35. anonymous

3x3=9 5.2x2=10.4

36. UsukiDoll

ok what's 9+10.4

37. anonymous

19.4

38. anonymous

oh i see it

39. anonymous

thx byeeee