MATHEMATICS MIDDLE SCHOOL

Show how the following sequences is an arithmetic or not
please help me ​
show how the following sequences is an arithmetic or not - 1

Answers

Answer 1
Answer:

Answer:

not arithmetic

Step-by-step explanation:

An arithmetic sequence has a common difference d between consecutive terms.

Given

T_(n) = 2n² - 1

Substitute in n = 1, 2, 3, 4 to generate the first 4 terms of the sequence

T_(1) = 2(1)² - 1 = 2 - 1 = 1

T_(2) = 2(2)² - 1 = 8 - 1 = 7

T_(3) = 2(3)² - 1 = 18 - 1 = 17

T_(4) = 2(4)² - 1 = 32 - 1 = 31

check the difference between consecutive terms

7 - 1 = 6

17 - 7 = 10

31 - 17 = 14

The differences are not common hence not an arithmetic sequence

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Solve the equation:
5x + 65 = 25
What is the value of x

Answers

Answer: -8

Step-by-step explanation:

Answer:

x = -8

Step-by-step explanation:

If you multiply -8 by 5 you get -40. Then if you add 65 to -40 you get 25.

Hope this helps.

Which of the following is equivalent to √20

A. 4
B. 5√2
C. 2√5
D. 20

Answers

Answer is 4 because it can be multiplied by 5

72ouces 6 steaks equals what

Answers

72 divided by 6 is 12. Each steak is 12 pounds.

A bowling alley charges each person $6 to play a game and $4.50 to rent a pair of bowling shoes. Write an expression to show how much the bowling alley will charge f friends if they each play 3 games and all but one of them rents shoes.

Answers

Write an expression to show how much the bowling alley

cost = f($6 x 3) + (f - 1) x $4.50

c=9f+4.5*(f-1)

Final answer:

The expression to calculate the total cost for f friends playing 3 games each, with all but one renting shoes, is 6 * 3 * (f - 1) + 4.50 * (f - 1).

Explanation:

To calculate the total cost for f friends playing 3 games each, all but one renting shoes, we can write the expression: 6 * 3 * (f - 1) + 4.50 * (f - 1). The cost of each game is $6, and since each person plays 3 games, we multiply that by 3. The cost of renting shoes is $4.50, and since all but one person rents shoes, we multiply that by (f - 1).

Learn more about Calculating the cost of bowling for multiple friends here:

brainly.com/question/29126497

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Xy-4x-3y=5 solve for y

Answers

y= (4x+5)/(x-3) that is the answer.

Marco bought a new TV for his house that cost $1,500. The TV had a rebate of $350. What was Marco’s final cost for the TV after the rebate was applied?

Answers

Answer:

$1,150

Step-by-step explanation:

$1,500-$350=$1,150

Answer:

The final cost of the TV is $1150

Step-by-step explanation:

1500-350=1150
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