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Andrei [34K]
3 years ago
14

Which of the following sequences of numbers are arithmetic sequences?

Mathematics
1 answer:
valkas [14]3 years ago
7 0
An arithmetic sequence is a sequence of numbers with a common difference. 

In the choices above, only A and D are arithmetic sequences. 

<em>In A, the common difference is 2 while in D, it's 0 .1. 
</em>

B can't be an arithmetic sequence since the number 1 is just being repeated many times, there's no progression.

C as well. Be observant of the pattern, it can be an arithmetic sequence only if it has 4 before 5. 

E obviously is not an arithmetic sequence. If you try to find the difference between the consecutive terms, it's not common. 
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The proof that ΔACB ≅ ΔECD is shown. Given: AE and DB bisect each other at C. Prove: ΔACB ≅ ΔECD What is the missing statement i
GarryVolchara [31]

Answer:

The missing statement is ∠ACB ≅ ∠ECD

Step-by-step explanation:

Given two lines segment AC and BD bisect each other at C.

We have to prove that ΔACB ≅ ΔECD

In triangle ACB and ECD

AC=CE    (Given)

BC=CD   (Given)

Now to prove above two triangles congruent we need one more side or angle

so, as seen in options the angle ∠ACB ≅ ∠ECD due to vertically opposite angles

hence, the missing statement is ∠ACB ≅ ∠ECD


9 0
2 years ago
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Look at the attached questions please :)
elixir [45]

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3 years ago
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6 0
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Answer:

(x,y) = (-2, -1)

Step-by-step explanation:

We start off by substituting the value of "x".

5x+7y=-17

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We then solve 55(-\frac{5}{4}+\frac{3}{4}y ) +7y= -17

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Step-by-step explanation:

Area = Base  \times Height

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