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Alinara [238K]
3 years ago
15

Write a recursive formula for the following arithmetic sequence. 8, 5, 2, −1,

Mathematics
1 answer:
Kamila [148]3 years ago
8 0

Answer:

a_{n} = a_{n-1} - 3

Step-by-step explanation:

A recursive formula allows a term in the sequence to be found from the previous term by adding the common difference to it.

Here d = 5 - 8 = - 3, thus

a_{n} = a_{n-1} - 3 with a₁ = 8 ← recursive formula

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What is 513 + _ + 130 = 764? what is the missing number and can u pls do a explantation
dmitriy555 [2]

Answer:

121

Step-by-step explanation:

The missing number is 121. I got this by doing 764-130-513=121. You would do this because you are trying to find the number that would allow 130 and 513 to add up to 764.

Another way to look at this problem is 513+130= 643

764-643=121

In conclusion, 513+121+130=764

4 0
3 years ago
Read 2 more answers
Can anyone answer this problem in their head. No calculator or paper.
rodikova [14]
7,393,420,225 is the answer tk the problem without using calculator.
7 0
3 years ago
Find x. <br><br> See attached picture.
Serhud [2]

The value of x will be equal to 4√6. The correct option is B.

<h3>What is trigonometry?</h3>

The branch of mathematics sets up a relationship between the sides and the angles of the right-angle triangle termed trigonometry.

Trigonometric Identities are equality statements that hold true for all values of the variables in the equation and that use trigonometry functions. There are numerous distinctive trigonometric identities that relate to a triangle's side length and angle.

The value of side x will be calculated by using the angle properties.

SIn( 45 ) = P / H

Sin (45) = 12 / H

H = 12 / ( 1 / √2) = 12√2

Again using the angle property for finding the value of x.

tan30 = P / B

x = tan30 x B

x = ( 1 / √3 ) x 12√2

x = 4√6

Therefore, the value of x will be equal to 4√6. The correct option is B.

To know more about Trigonometry follow

brainly.com/question/24349828

#SPJ1

3 0
2 years ago
Change 5/8 into a percent show all your work
ahrayia [7]

Answer:

62.5 %

Step-by-step explanation:

5 divided by 8 pretty much. I can't show the work on computer but do simple algorithm division. 5/8 is 0.625. The trick to find percentage is by moving the decimal two places to the right. so 62.5%

6 0
3 years ago
Is -33.1 a whole number
Oksana_A [137]

Answer:

No

Step-by-step explanation:

This is because it's part of a whole.  It has to be an integer to be whole.

7 0
3 years ago
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