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Amiraneli [1.4K]
3 years ago
13

Help picture is shown!!!!

Mathematics
2 answers:
daser333 [38]3 years ago
6 0
D,

Symmetry is when you split the shape, but they look the same. 
krok68 [10]3 years ago
3 0
Symmetry, it is split in the middle and both sides are the exact same

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3. In the figure below, E is on AD and C is on BD. The dimensions given are in meters. What is the length, in meters, of CD?
damaskus [11]

Answer:

C. 3,960

Step-by-step explanation:

∆ADB ~ ∆EDC. Therefore,

\frac{AB}{EC} = \frac{DB}{DC}

\frac{2,000}{1,200} = \frac{2,640 + x}{x} (substitution)

Solve for x

\frac{5}{3} = \frac{2,640 + x}{x}

Cross multiply

5*x = 3(2,640 + x)

5x = 7,920 + 3x

5x - 3x = 7,920

2x = 7,920

x = 7,920/2

x = 3,960 meters

7 0
2 years ago
Ow many significant figures are in the number 0.0040090?
Bumek [7]

5 significant figures but note that 0 is only non-significant when it begins a decimal its only significant when it's in between numbers or after a number

7 0
3 years ago
(7)/(3) of it is 5 (5)/(6)
slava [35]

let's firstly convert the mixed fraction to improper fraction and then take it from there, keeping in mind that the whole is "x".

\stackrel{mixed}{5\frac{5}{6}}\implies \cfrac{5\cdot 6+5}{6}\implies \stackrel{improper}{\cfrac{35}{6}} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{7}{3}x~~ = ~~5\frac{5}{6}\implies \cfrac{7}{3}x~~ = ~~\cfrac{35}{6}\implies 42x=105\implies x=\cfrac{105}{42} \\\\\\ x=\cfrac{21\cdot 5}{21\cdot 2}\implies x=\cfrac{21}{21}\cdot \cfrac{5}{2}\implies x=1\cdot \cfrac{5}{2}\implies x=2\frac{1}{2}

7 0
2 years ago
Which statement must be true? Two triangles placed side by side. Two sides each of the triangles are equal in length. The third
sladkih [1.3K]

It is impossible to determine the relationship between x and y from the question about the triangle. Hence,  the correct option is D. This is because none of the sides are labelled x or y from the information provided.

<h3>What are the relationships that exist between the sides of a triangle?</h3>

It is important to note that:

The side with the highest length is the side that is opposite the biggest angle.

It is also important to note that the angle that is least will always be opposite the side that is smallest.

Learn more about triangles at:
brainly.com/question/17335144
#SPJ1

7 0
2 years ago
Can someone help me please
Sveta_85 [38]

Answer:

66.42degrees

Step-by-step explanation:

\cos {}^{ - 1} ( \frac{6}{15} )  = 66.42degrees

7 0
3 years ago
Read 2 more answers
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