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.

- anonymous

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- anonymous

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- anonymous

I think it is D

- 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.

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## More answers

- anonymous

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

- anonymous

those are the similar triangles

- anonymous

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

- anonymous

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

- anonymous

@mathstudent55

- anonymous

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

- 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.

- anonymous

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

- 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.

- anonymous

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

- anonymous

@_greatmath7

- 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

- anonymous

but that's not an answer choice

- anonymous

i already saw that on yahoo answers lol

- anonymous

those aren't the right numbers

- anonymous

oops ment 1134.20cm^3

- anonymous

I rounded

- 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.

- anonymous

@iwanttolearn1212 keep the medal I don't want it

- anonymous

well can you still help me? you deserve the medal

- anonymous

yeahI am still helping you but for the other question

- anonymous

ok then!

- 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

- anonymous

C I mean LOL

- anonymous

@iwanttolearn1212

- 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

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- 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.

- anonymous

B

- anonymous

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

- anonymous

cool i have more! lol

- anonymous

you are amazing

- anonymous

LOL cool

- anonymous

thanks

- 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

- anonymous

let me attach the pic tures

- anonymous

u are online in school huh

- anonymous

a)

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- anonymous

yes ahah i am on my final test

- anonymous

oh I am only in Edgenuity to

- anonymous

b)

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- anonymous

c)

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- anonymous

d)

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- anonymous

yup im on edgenuity

- anonymous

:)

- anonymous

B is the correct answer.

- anonymous

C sorry

- anonymous

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

- anonymous

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

- anonymous

SO C

- anonymous

thank u! wow

- anonymous

lol i have more :)

- anonymous

yw and okay Glad to Help

- 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

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- anonymous

|dw:1439343953459:dw|

- anonymous

C

- anonymous

You do 2sqrt119 and get 21.817 you round up

- anonymous

yess ty

- 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

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- anonymous

c. y=x
d. y=2x

- anonymous

A because the triangle is reflecting of the x axis

- anonymous

So A

- 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

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- anonymous

it's FL || GK right?

- anonymous

Yep

- anonymous

if m

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- anonymous

a. m

- anonymous

D

- 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

- anonymous

It is D because m

- anonymous

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

- anonymous

i understand :)

- anonymous

great

- anonymous

figure out #7 yet?

- anonymous

nope working on it will be done in a flash

- anonymous

sweet

- anonymous

I think C

- anonymous

you do realize itz (0,7) yeah?

- anonymous

oops thought -7 sorry

- anonymous

like the y intercept is 0,7

- anonymous

I think it is A

- anonymous

yeah A

- anonymous

sweet lol only a few more bare w me

- anonymous

k will help

- 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

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- anonymous

A

- anonymous

you sure?

- anonymous

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

- anonymous

yes I am sure

- 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

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- anonymous

you are awesome.

- anonymous

thnks

- anonymous

@_greatmath7 any idea w the question i just asked

- anonymous

wait a second please I think I almost have it

- anonymous

thats fine!

- anonymous

I don't know I think D though

- anonymous

sweet

- 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°

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- anonymous

only 3 more after this one lol

- anonymous

cool

- anonymous

A

- 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.

- anonymous

It rotates 45º

- anonymous

nice job!!

- anonymous

thanks

- anonymous

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

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- anonymous

a. x=15, y= 10 radical 3
b. x=20, y= 10 radical 3
c. x=20 radical 3, y= 5 radical 3
d. x=15, y= 5 radical 3

- anonymous

B

- anonymous

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

- anonymous

cool

- anonymous

do you want me to explain why b

- anonymous

yes.

- anonymous

if you dont mind

- anonymous

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

- 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

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- anonymous

a. x= 2/11

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- anonymous

similar triangles have corresponding sides in the same ratio

- anonymous

b. x=4/11

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- anonymous

c. x=2

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- anonymous

d. x=8

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- anonymous

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

- anonymous

x=8?

- anonymous

yep I think so

- anonymous

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

- anonymous

k good luck

- anonymous

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

- anonymous

u are welcome great job

- anonymous

you deserve a medal seriously

- anonymous

thnx

- anonymous

good job again

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