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Novosadov [1.4K]
3 years ago
5

Phân tích thành nhân tử 3+√5 +3√5 +5

Mathematics
1 answer:
Lyrx [107]3 years ago
3 0

Step-by-step explanation:

3+√5+3√5+5

=6√5+5

=6√10

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Complete the pairs of corresponding parts if △ABD ≅ △EFC.
vovangra [49]

Answer:

We conclude that:

∠A = ∠ FEC

Step-by-step explanation:

Given

△ABD ≅ △EFC

To determine:

∠A =

As

△ABD ≅ △EFC

So the triangles △ABD and △EFC are congruent to each other.

  • We know that congruent triangles have equal corresponding parts.

Please check the attached graph.

From the graph, it is clear that ∠A is correspondent to ∠E.

∠A = ∠E

From the attached figure, it is clear that:

∠F can also be denoted by ∠ FEC

as

∠A = ∠E

so

∠A = ∠ FEC

Therefore, we conclude that:

∠A = ∠ FEC

6 0
3 years ago
A sequence can be defined by the explicit formula <img src="https://tex.z-dn.net/?f=a_n%3D5-3_n" id="TexFormula1" title="a_n=5-3
astra-53 [7]
<h2>Answer:</h2>

Option: C is the correct answer.

            C.  a_n=a_{n-1}-3\ ;\ a_1=2

<h2>Step-by-step explanation:</h2>

The sequence is given by the explicit formula as:

a_n=5-3n

where a_n is the nth term of the sequence.

Also, the first term of the sequence is: a_1

i.e.

a_1=5-3\times 1\\\\i.e.\\\\a_1=5-3\\\\i.e.\\\\a_1=2

Also,

a_n=5-3n\\\\i.e.\\\\a_n=5-3n+3-3\\\\i.e.\\\\a_n=5-3(n-1)-3\\\\i.e.\\\\a_n=a_{n-1}-3

   Hence, the recursive formula which represents the same sequence is:

                          Option: C

3 0
3 years ago
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Sever21 [200]

Answer:

If you are asking,

5x - 4x^2=0

x(5-4x)=0

Either,

x=0

or,

5-4x=0

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If factor,

5x - 4x^2

x(5-4x)

If difference,

5x - 4x^2

The same as they are not like terms.

7 0
3 years ago
0.35, 0.68, 0.20, 0.31<br><br> Order the numbers greatest to least.
Artyom0805 [142]

Answer:0.68,0.35,0.31,0.20

Step-by-step explanation:

6 0
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What is the area, in square units, of triangle $ABC$ in the figure shown if points $A$, $B$, $C$ and $D$ are coplanar, angle $D$
Zolol [24]

Answer:

The answer is 24.

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