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xxMikexx [17]
3 years ago
12

Please help i need to answer this within 2 hours

Mathematics
2 answers:
Gelneren [198K]3 years ago
7 0
The answer is A. -137.8
Phantasy [73]3 years ago
5 0
-112.84 - 54.14 - (-29.18)

-166.98 - (-29.18)

-137.8 <-------- answer
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If |AB| / |DE|=7/5 then what is |AD| / |CD|?DE is parallel to AB
Dmitriy789 [7]

Answer: AD/CD = 2/5

Explanation:

Triangle ABC is similar to triangle DEC on the basis of AA(Angle angle)

Recall, if 2 triangles are similar, it means that the ratio of their corresponding sides are equal. Thus,

AB/DE = BC/EC = AC/DC

From the information given,

AB/DE = 7/5

Thus,

AC/DC = 7/5

AD + CD = AC

(AD + CD)/DC = 7/5

AD/DC + CD/DC = 7/5

AD/DC + 1 = 7/5

AD/DC = 7/5 - 1

AD/DC = 2/5

AD/CD = 2/5

4 0
8 months ago
6th grade math please help
Digiron [165]

Answer:

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Step-by-step explanation:

6/7 ÷ 4

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6/4 * 1/7

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3/2 * 1/7

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8 0
3 years ago
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8 0
2 years ago
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19.47 is what percent of 29.5
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7 0
2 years ago
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A rectangular retaining wall has an area of
Veronika [31]

Answer:

The height of wall is 3 feet and length of wall is 5 feet

Step-by-step explanation:

Given as :

The Area of retaining wall = 15 square feet

Let The width of wall = W feet

The Height of wall = ( W - 2 ) feet

Now, Area of Rectangle = Height  width

Or , 15 ft² = ( W - 2 ) ft × W ft

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Or,   W² - 2 W - 15 = 0

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So , ( W - 5 ) ( W + 3 ) = 0

So, W = 5 , - 3

∴ The width of wall = W = 5 feet

And The Height of wall = ( W - 2 ) = 5 - 2 = 3  feet

Hence The height of wall is 3 feet and length of wall is 5 feet. Answer

8 0
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