Which of the following sequences of numbers are arithmetic sequences?

1 answer:

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.

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


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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To simplify the expression we are going to use the distributive property of multiplication: $a(b+c)=ab+ac$ .
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alexandr402 [8]

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Read 2 more answers

_____ less than a number is 51

Kryger [21]

Answer:

W number - blank is 51.

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I don't understand what the question is. What is the number unless you want something random then here:

Blank - 52

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The diagonal in a rectangle is 20 units long, and the angle between the diagonal and a side is 36º 42'.

mylen [45]

Side adjacent to the given angle: x
Diagonal=hypotenuse=20
cos (36° 42') =(side adjacent to angle 36° 42')/Hypotenuse
cos (36° 42')=x/20
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20 cos (36° 42')=20 (x/20)
20 cos (36° 42')=x
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Answer: Option D. 16.04

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