## anonymous one year ago If TUVW is an isosceles trapezoid with TU parallel to WV , name a pair of similar triangles. Explain. A. by the SAS similarity theorem. B. by the SAS similarity theorem. C. by the AA similarity postulate. D. by the AA similarity postulate.

1. anonymous

2. anonymous

I think it is D

3. anonymous

Angle-Angle (AA) Similarity Postulate. If two angles of one triangle are congruent to two angles of another. triangle, then the two triangles are similar- ffi.

4. anonymous

UXV-WXT TXU-WXV WUV-TVW TXU-VXW

5. anonymous

those are the similar triangles

6. anonymous

do you mind if i ask the other person who was w us for a second opinion?

7. anonymous

No of course not, I would love to hear a second opinion. :)

8. anonymous

@mathstudent55

9. anonymous

ahh they're not online. why do you think it is D?

10. anonymous

I think it is D because I looked up the definitions for similarity theorem and similarity postulate. I already knew it was angle angle because means that the triangles have two of their angles equal and parallel.

11. anonymous

AA means they have to be in two different triangle or parallel, but always equal.

12. anonymous

The surface areas of two similar solids are 1008 cm^2 and 1372 cm^2 The volume of the larger solid is 1801 cm^3. Find the volume of the smaller solid. Round your answer to the nearest hundredth.

13. anonymous

a) 252.15 b) 1134.16 c) 1323.18 d) 1372.19

14. anonymous

@_greatmath7

15. anonymous

A scale factor represents the ratio of corresponding sides in similar figures. (scale factor)^2 => area ratio (scale factor)^3 => volume ratio √( 2023/1183) = 17 / 13 (17/13)^3 = 4913 / 2197 4913 / 2197 = 2333 / x x = 1043.27 in^3

16. anonymous

but that's not an answer choice

17. anonymous

18. anonymous

those aren't the right numbers

19. anonymous

oops ment 1134.20cm^3

20. anonymous

I rounded

21. anonymous

If a sphere’s radius is quadrupled, what is the corresponding change in surface area? A. The surface area is quadrupled. B. The surface area is multiplied by 8. C. The surface area is multiplied by 16. D. The surface area is doubled.

22. anonymous

@iwanttolearn1212 keep the medal I don't want it

23. anonymous

well can you still help me? you deserve the medal

24. anonymous

yeahI am still helping you but for the other question

25. anonymous

ok then!

26. anonymous

SA=4 pi r^2 if you double the radius, it's quadrupled. answer is B. 4 pi (2r)^2 = 16 pi r^2

27. anonymous

C I mean LOL

28. anonymous

@iwanttolearn1212

29. anonymous

A. lower quartile = 38, upper quartile = 47, interquartile range = 9 B. lower quartile = 45, upper quartile = 50, interquartile range = 5 C. lower quartile = 47, upper quartile = 53, interquartile range = 6 D. lower quartile = 45, upper quartile = 47, interquartile range = 2

30. anonymous

Use the box-and-whisker plot below to identify the lower quartile, upper quartile, and interquartile range of the data set the plot represents.

31. anonymous

B

32. anonymous

The lower quartile is on the left side of the box. The higher quartile is on the right side of the box. :)

33. anonymous

cool i have more! lol

34. anonymous

you are amazing

35. anonymous

LOL cool

36. anonymous

thanks

37. anonymous

Marcus has 16 jawbreakers, 12 chocolates, and 8 sugared fruit pieces in a candy box. Which of the following graphs represents the candies in the candy box? A. 2003-13-01-00-00-re_files/i0310000.jpg B. 2003-13-01-00-00-re_files/i0310001.jpg C. 2003-13-01-00-00-re_files/i0310002.jpg D. 2003-13-01-00-00-re_files/i0310003.jpg

38. anonymous

let me attach the pic tures

39. anonymous

u are online in school huh

40. anonymous

a)

41. anonymous

yes ahah i am on my final test

42. anonymous

oh I am only in Edgenuity to

43. anonymous

b)

44. anonymous

c)

45. anonymous

d)

46. anonymous

yup im on edgenuity

47. anonymous

:)

48. anonymous

49. anonymous

C sorry

50. anonymous

Jawbreakers have the biggest part of the circle graph or 44.44% of it.

51. anonymous

Chocolate has 33.33% Fruit Candy 22.22% then you check to see if it adds up to 100%

52. anonymous

SO C

53. anonymous

thank u! wow

54. anonymous

lol i have more :)

55. anonymous

yw and okay Glad to Help

56. anonymous

Find the unknown side length, x. Write your answer in simplest radical form. A. 14 B. 18 C. 2004-04-01-02-00_files/i0110001.jpg D. 2004-04-01-02-00_files/i0110002.jpg

57. anonymous

|dw:1439343953459:dw|

58. anonymous

C

59. anonymous

You do 2sqrt119 and get 21.817 you round up

60. anonymous

yess ty

61. anonymous

The graph illustrates a reflection of . What is the line of reflection? A. x-axis B. y-axis C. 2004-01-04-03-00_files/i0350001.jpg D. 2004-01-04-03-00_files/i0350002.jpg

62. anonymous

c. y=x d. y=2x

63. anonymous

A because the triangle is reflecting of the x axis

64. anonymous

So A

65. anonymous

In the diagram above, which two red lines are parallel? A. 2004-01-01-01-00_files/i0410001.jpg B. 2004-01-01-01-00_files/i0410002.jpg C. 2004-01-01-01-00_files/i0410003.jpg D. 2004-01-01-01-00_files/i0410004.jpg

66. anonymous

it's FL || GK right?

67. anonymous

Yep

68. anonymous

if m <k=68 degrees then find m<L, m<M, m<N

69. anonymous

a. m<L=68, m<M=112, m<N=112 b. m<L=112, m<M=68, m<N=68 c. m<L=112, m<M=68, m<N=112 d. m<L=112, m<M=112, m<N= 68

70. anonymous

D

71. anonymous

The vertex of the graph of a quadratic function is (2, –1) and the y-intercept is (0, 7). Which of the following is the equation of the function? A. y = 2x2 – 8x + 7 B. y = 2x2 + 8x + 7 C. y = 2x2 + 8x – 7 D. y = 2x2 – 7x + 8

72. anonymous

It is D because m<N is equal to m<k and m<L is equal to m<M then you add 112 and 112 and 68 and 68 and you get 360

73. anonymous

nUMBER 7 is not D btw d is for the previous question.

74. anonymous

i understand :)

75. anonymous

great

76. anonymous

figure out #7 yet?

77. anonymous

nope working on it will be done in a flash

78. anonymous

sweet

79. anonymous

I think C

80. anonymous

you do realize itz (0,7) yeah?

81. anonymous

oops thought -7 sorry

82. anonymous

like the y intercept is 0,7

83. anonymous

I think it is A

84. anonymous

yeah A

85. anonymous

sweet lol only a few more bare w me

86. anonymous

k will help

87. anonymous

In the figure, AB || CD. If the area of CED is 425, the area of BEA is 68, and BE = 10, find CE. A. 25 B. 36 C. 48 D. 62.5

88. anonymous

A

89. anonymous

you sure?

90. anonymous

All the corresponding angles are equal so they must be similar right $\large{\cfrac{Ar[ABE]}{Ar[CED]} = [\cfrac{BE}{CE}]^2}$ $\frac{ 68 }{ 425 }=\frac{ 100 }{ x^2 }$ $68x^2=42500$ $x^2=625$ $x=25$

91. anonymous

yes I am sure

92. anonymous

The cross-sectional area parallel to the bases of the two figures above is the same at every level. Find the volume of the cone, to the nearest tenth. A. 26.5 cm3 B. 44.2 cm3 C. 79.5 cm3 D. 132.5 cm3

93. anonymous

you are awesome.

94. anonymous

thnks

95. anonymous

@_greatmath7 any idea w the question i just asked

96. anonymous

wait a second please I think I almost have it

97. anonymous

thats fine!

98. anonymous

I don't know I think D though

99. anonymous

sweet

100. anonymous

What is the angle of rotation of this regular octagon? What is the measure of an interior angle? A. 45°, 135° B. 22.5°, 135° C. 45°, 108° D. 22.5°, 108°

101. anonymous

only 3 more after this one lol

102. anonymous

cool

103. anonymous

A

104. anonymous

All sides are the same length (congruent) and all interior angles are the same size (congruent). To find the measure of the angles, we know that the sum of all the angles is 1080 degrees (from above)... And there are eight angles... So, the measure of the interior angle of a regular octagon is 135 degrees.

105. anonymous

It rotates 45º

106. anonymous

nice job!!

107. anonymous

thanks

108. anonymous

Find the value of x and the value of y. A. , B. , C. , D. ,

109. anonymous

110. anonymous

B

111. anonymous

i lied, there's only one more after this one :)

112. anonymous

cool

113. anonymous

do you want me to explain why b

114. anonymous

yes.

115. anonymous

if you dont mind

116. anonymous

ok so when you do 10squirt that is y; 17.320 and x is longer than y so 20 is bigger than y

117. anonymous

The triangles above are similar. Write a similarity statement. If possible, solve for x. The images are not drawn to scale. A. /, x = 2004-02-04-02-00_files/i0340002.jpg B. /, x = 2004-02-04-02-00_files/i0340005.jpg C. /, x = 2 D. /, x = 8

118. anonymous

a. x= 2/11

119. anonymous

similar triangles have corresponding sides in the same ratio

120. anonymous

b. x=4/11

121. anonymous

c. x=2

122. anonymous

d. x=8

123. anonymous

21/28 = (5x + 2) / 7x

124. anonymous

x=8?

125. anonymous

yep I think so

126. anonymous

wow thanks. im about to turn in my test ill tell u what happens

127. anonymous

k good luck

128. anonymous

i got an 84%!!!! thanks so much!!!!!

129. anonymous

u are welcome great job

130. anonymous

you deserve a medal seriously

131. anonymous

thnx

132. anonymous

good job again