## anonymous 5 years ago cn someone give me a website with a free online tutor

1. anonymous

Open study

2. anonymous

open study? thts the name of the site

3. anonymous

Yes, there are 27 people available right now that may be able to help you. Just post your question.

4. anonymous

ok$x/3=30$

5. anonymous

90

6. anonymous

Multiply both sides by 3.

7. anonymous

which maths paper?

8. anonymous

x/3=30 (3) x/3=30(3) x=90

9. anonymous

thank you

10. anonymous

can i go through this study guide with yall because its been a long time since i did any of this

11. anonymous

If you want :)

12. anonymous

$5x-2=x-9$

13. anonymous

5x-2=x-9 4x=-7 x=-7/4

14. anonymous

ok thank! can i send a picture of the next problem

15. anonymous

Is the circumference 3.4 meters?

Is that the diameter of 3.4 meters

18. anonymous

the is question is what is the circumfrence and area of the circle

The image is pretty fuzzy. If the diameter is 3.4 meters the circumference is Pi times 3.4. Or 10.68 meters

20. anonymous

:D this is so so much help! should i send a better pic

O.K, if that is the diameter (3.4), what would be the radius?

Area of a circle is:$A=\pi \times r ^{2}$ where r equals the radius.

23. anonymous

would tht be half of tht 3.4

yes, radius is one half the diameter.

I get 1.7 for the radius. What did you come up with?

26. anonymous

im checking now! :)

27. anonymous

got the same

Good, use that value for r in the equation for area of a circle (6 post up from this one)

$A=\pi \times (1.7)^{2}$

30. anonymous

Yes, what did you come up with?

I got 9 sq

I got 9 sq meters.

Did you get something like that?

35. anonymous

yes!!!

Good have a nice day.

37. anonymous

thank you

38. anonymous

i need help with this next problem! any takers?

I can help you (maybe) for one more before I have to leave. I don't mind helping those who are willing to help themselves.

40. anonymous

find missing x

The image is really fuzzy. It appears there is a line y=3x-7 and then there appears to be another line intersecting whose equation is y=5x+11. Is this what you see?

42. anonymous

the top of the intersecting line is 5-x=11

43. anonymous

youre right srry

O.K. then we could say at that point where they are intersect y=y 5x-11+3x-7 2x=4 x=2 You could plus that in and solve the y point by inspection I can see that y=-1

Wait in minute, did you say it is 5x+11, not 5x-11??

46. anonymous

yeah its 5x+11

47. anonymous

it looks to me like a geometry question: 5x+11 + 3x-7 = 180

Then it would be 5x+11=3x-7 2x=-18 x=-9

49. anonymous

From the picture it looks like we have a linear pair (a set of angles that make a straight line) so if we add the angles together we get 180 degrees. Setting them equal gives 5x+11 + 3x-7 = 180 so 8x+4=180. 8x = 176 x = 22 degrees

Could be, to me it looked like two intersecting lines, all be it one rotated to align it self with the x axis, and the intersection point was to be solved.

51. anonymous

ok so they way tbates did it or the way you did?

52. anonymous

I can see that too, but the cursive l beside the line leads me to think its a linear pairs

It appears that Tbates has said this was a geometry question, he is probably rights, as theother questions were about circles etc. so I leave you in his capable hands lol

54. anonymous

If it were lines on a graph I would have wholeheartedly agreed with your solution radar.

Yes, I don't see any coordinates etc. I told christy_white, "maybe" I could help her, in this case maybe not. However, christy, is wanting assistance and appears to be sincerely trying, if you can help, please do.

56. anonymous

I'll be around for a bit so post the questions away!

57. anonymous

thanks guys ")

58. anonymous

next question?

59. anonymous

Fire away!

Go aheaD Tbates will be back

61. anonymous

ok sending the picture

62. anonymous

if each quadirlateral is a parallelgram then find the value of x y z

63. anonymous

tht two problems

64. anonymous

tht two problems

65. anonymous

If we look at 7 first and specifically z. Again we have a linear pair so: z + 78 = 180

66. anonymous

This means z = 102 in the first problem.

67. anonymous

for x we have a set of parallel lines cut by a transversal so x = 24 (alternate interior angles) http://www.mathsisfun.com/geometry/alternate-interior-angles.html

68. anonymous

Finally all interior angles of a triangle add to 180 so: y + x + 78 = 180 y + 24 + 78 = 180 y + 102 = 180 y = 78

69. anonymous

ok i gotcha!

70. anonymous

On the second one there's a theorem that states opposite angles in a parallelogram are equal so z = 104. Using alternate interior angles x = 32 and y = 44

71. anonymous

Does that make sense?

72. anonymous

had to take my dog out for a min. but im looking over it now

73. anonymous

yeah i understand

74. anonymous

Excellent! Have any more questions?

75. anonymous

ohhh yes i have a whole study guide lol! i can take as much help as anyone is willing to give

76. anonymous

I'll be around, I'm also answering other questions but I'll be helping you out as well.

77. anonymous

the distance btw two points$( 2, 5)(6, -1)$

78. anonymous

There is a formula for finding the distance between two points and it's: $distance = \sqrt{(x _{2}-x _{1})^{2}+(y _{2}-y _{1})^{2}}$ $\sqrt{(5-2)^{2}+(-1-6)^{2}}$ $\sqrt{(3)^{2}+(-7)^{2}}$ $\sqrt{9 + 47}$ √56 = 7.48

79. anonymous

oops I meant √58 = 7.62

80. anonymous

all done?