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irina [24]
3 years ago
11

PLEASE HELP ME!! I DONT UNDERSTAND!!

Mathematics
1 answer:
likoan [24]3 years ago
6 0

Answer:

\large\boxed{CU=118}

Step-by-step explanation:

ΔUFW and ΔCDW are similar (AA). Therefore the siades are in proportion:

\dfrac{UW}{CW}=\dfrac{VW}{DW}

We have

UW = 36x-1

CW = 26

VW = 110

DW = 20

Substitute:

\dfrac{36x-1}{26}=\dfrac{110}{20}              <em>cross multiply</em>

20(36x-1)=(26)(110)          <em>use distributive property</em>

(20)(36x)+(20)(-1)=2860

720x-20=2860                <em>add 20 to both sides</em>

720x=2880       <em>divide both sides by 720</em>

x=4

UW=36x-1\to UW=36(4)-1=144-1=143

CU = UW - CW

Susbtitute:

CU=143-26=118

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Given:

Consider the pentagon MVEDR is dilated with the origin as the center of dilation using the rule (x,y)\to(\dfrac{2}{3}x,\dfrac{2}{3}y) to create pentagon M'V'E'D'R'.

To find:

The correct statement.

Solution:

If a figure dilated by factor k, then the rule of dilation is

(x,y)\to (kx,ky)

Here,

If k>1, then the image is larger than the original figure.

If k<1, then the image is smaller than the original figure.

We have,

(x,y)\to(\dfrac{2}{3}x,\dfrac{2}{3}y)

Here, M'V'E'D'R' is image and MVEDR is original figure. The scale factor is

k=\dfrac{2}{3}

Pentagon M'V'E'D'R' is smaller than pentagon MVEDR because the scale factor is less than 1.

Therefore, the correct option is B.

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2 years ago
PLEASE HELP!!! 8th grade math
arlik [135]
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6 0
3 years ago
Question 3 !!!!!!!!!!!!!!!!!!!!!!!!
Bond [772]

Answer:

57

Step-by-step explanation:

6 0
3 years ago
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What’s the answer to this problem?
Paul [167]
I think it would be b
3 0
2 years ago
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Alex_Xolod [135]

Answer:

33%

Step-by-step explanation:

The area of a circle is \pi r^{2} , where r is the radius. In this case, the area of the second largest circle is \pi (3+4)^{2} (because the radius is 3 + 4 = 7) = 49\pi.

The area of the smallest circle is \pi 4^{2} = 16\pi.

Now, the area of the shaded region is just the smallest circle's area subtracted from the second-largest circle's area:

49\pi - 16\pi = 33\pi

To find the percentage of the logo that is shaded, we need to find the total area, which is just the area of the largest circle: \pi *(4 + 3 + 3)^{2}  = \pi *10^{2} = 100\pi

Now, we just divide 33\pi by 100\pi to get:

33\pi/100\pi = 33/100 = 33%, which is our answer.

5 0
3 years ago
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