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yKpoI14uk [10]
3 years ago
8

He first five terms in the arithmetic sequence an = 8n, starting with n = 1.

Mathematics
2 answers:
Marat540 [252]3 years ago
7 0
8,16,24,32,40
All you have to do is replace the n in 8n with the sequance number you're looking for
like for instance:
8(1)=8
8(2)=16
GuDViN [60]3 years ago
5 0
a_n=8n\\ \\a_1=8\cdot1=8\\a_2=8\cdot2=16\\a_3=8\cdot3=24\\a_4=8\cdot4=32\\a_5=8\cdot5=40
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PLEASE HELP! WILL MARK BRAINLIEST
Veseljchak [2.6K]

The value of x is 3, while the length of the rectangle is 30 units and the width is 24 units.

<h3>How to determine the dimensions?</h3>

The given parameters are:

Base = 5(x+3)

Height = 2(x+9)

Perimeter = 108

The perimeter of a rectangle is

P = 2 *(Base + Height)

So, we have:

2 *(5(x + 3) + 2(x + 9)) = 108

Divide both sides by 2

5(x + 3) + 2(x + 9) = 54

Open the brackets

5x + 15 + 2x + 18 = 54

Evaluate the like terms

7x = 21

Divide by 7

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Substitute x = 3 in Base = 5(x+3) and Height = 2(x+9)

Base = 5(3+3) = 30

Height = 2(3+9) = 24

Hence, the value of x is 3, while the length of the rectangle is 30 units and the width is 24 units.

Read more about perimeter at:

brainly.com/question/24571594

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3 years ago
How many real-number solutions does the equation have?
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Answer:

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Step-by-step explanation:

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amm1812

Answer:

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Step-by-step explanation:

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