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3241004551 [841]
3 years ago
10

Help with this math question

Mathematics
1 answer:
Zielflug [23.3K]3 years ago
7 0

The answer is: 2 seconds

The explanation for this answer is shown below:

1. By definition, the amount of second required for the pendulum to move from its resting position and return, is the period.

2. As you can see in the graph attached in the exercise, the wave interval is repeating every two units of x (or 2 seconds).

3. Therefore, the period is 2 seconds.

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3 years ago
What is a31 of the<br> arithmetic sequence for<br> which a5 = 12.4 and<br> ag = : 22.4?
MrMuchimi

The value of a₃₁ of the arithmetic sequence exists 77.4.

<h3>How to find the value of a₃₁ of the arithmetic sequence?</h3>

Given: a₅ = 12.4 and a₉ = : 22.4

For the arithmetic sequence a₁, a₂, a₃, ..., the n-th term exists

where d = common difference

a₅ = 12.4,

a₁ + 4d = 12.4 .........(1)

Because a₉ = 22.4,

a₁ + 8d = 22.4 .........(2)

Subtract (1) from (2), we get

a₁ + 8d - (a₁ + 4d) = 22.4 - 12.4

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Dividing throughout by 4, we get

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Therefore, the correct answer is a₃₁ = 77.4

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1 year ago
Write 2.64 as a percent. Please help me thank you do much.
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The answer to this is 264%. Because you have to multiply it by 100
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