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Fittoniya [83]
3 years ago
6

Solve for x

Mathematics
1 answer:
Ivan3 years ago
5 0

9514 1404 393

Answer:

  x = 4

Step-by-step explanation:

The measures of all angles in this geometry are 90 degrees.

  21x +6 = 90

  21x = 84 . . . . . subtract 6

  x = 4 . . . . . . . divide by 21

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Step-by-step explanation:

8 0
3 years ago
The first term of an arithmetic sequence is equal to four and the common difference is three. find the formula for the value of
hichkok12 [17]

The formula for the value of nth term is a_{n} = 3n + 1

Step-by-step explanation:

The formula of the nth term in the arithmetic sequence is

a_{n}=a+(n-1)d , where

  • a is the first term of the sequence
  • d is the common difference between each two consecutive terms

∵ The first term of an arithmetic sequence is equal to four

∴ a = 4

∵ The common difference is equal to three

∴ d = 3

- Substitute these values in the rule of the nth term

∵ a_{n}=a+(n-1)d

∴ a_{n}=4+(n-1)3

- Simplify it

∴ a_{n}=4+3n-3

∴ a_{n}=1+3n

The formula for the value of nth term is a_{n} = 3n + 1

Learn more:

You can learn more about the sequence in brainly.com/question/7221312

#LearnwithBrainly

7 0
3 years ago
Express the area of the entire rectangle.<br> Your answer should be a polynomial in standard form.
Alchen [17]
Unfortunately I do not know the rectangle you are speaking of, if you could provide the rectangle I would be happy to help.
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Ne4ueva [31]
It’s just y= 17x. There’s nothing added or subtracted, or else it wouldn’t be (0,0).
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What is the measure of BC? <br> A)110<br> B)48<br> C) 96<br> D)55
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Step-by-step explanation:

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