All categories

2 years ago

An arithmetic sequence is shown below.

Mathematics

2 answers:

Elena L [17]2 years ago

7 0

Answer:

B. a (n) = -3n + 13

Step-by-step explanation:

Given arithmetic sequence is: 10, 7, 4, 1, -2, ...

Here a = 10, d = 7 - 10 = - 3

$a_n = a + (n - 1)d \\ \\ a_n = 10+ (n - 1)( - 3) \\ \\ a_n = 10 - 3n + 3 \\ \\ \purple{ \bold{a_n = - 3n +1 3 }}\\ \\$

xz_007 [3.2K]2 years ago

3 0

The answer is in the picture it shows the steps and how you got the answer.
The answer is B.

You might be interested in

Maggie is building bird houses for all of her friends. she has 77.5 feet of wood planks. She makes 5 bird houses and has 12 feet

sladkih [1.3K]

Answer:

13.1 FEET OF WOOD FOR EACH HOUSE

Step-by-step explanation:

77.5-12=65.6

65.5/5= 13.1

hope this helps

5 0

1 year ago

Problem 15-7 (Algorithmic) Speedy Oil provides a single-server automobile oil change and lubrication service. Customers provide

rodikova [14]

Answer: There are 4 average cars in the system.

Step-by-step explanation:

Since we have given that

Arrival rate = λ = 4 cars per hour

Service rate = μ = 5 cars per hour

We need to find the average number of cars in the system.

So, Average number of cars would be

$L_q=\dfrac{\lambda^2}{\mu(\mu-\lambda)}\\\\L_q=\dfrac{4^2}{5(5-4)}\\\\L_q=\dfrac{16}{5}\\\\L_q=3.2$

So, it becomes,

$L=L_q=\dfrac{\lambda}{\mu}\\\\L=3.2+\dfrac{4}{5}\\\\L=3.2+0.8\\\\L=4$

Hence, there are 4 average cars in the system.

6 0

3 years ago

Total runs scored by 2 batsmen is 215. Express this information in linear equation in two variables

Naddik [55]

Answer:

Let the runs scored by the first batsman be x

And,

Let the runs scored by the second batsman be y

The total runs scored are 215 which will be the sum of runs scored by both the batsmen.

Example:

x + y = 215

Step-by-step explanation:

6 0

2 years ago

A bag contains 9 red tiles, 10 blue files, and 6 green tiles. A tile is randomly drawn from the bag. Which statement is true?

stepan [7]

Answer: A. The probability of drawing a red tile is 36% and the probability of NOT drawing a red tile is 64%

Step-by-step explanation:

Number of red tiles = 9

Number of blue files = 10

Number of green tiles = 6

Total number of tiles = 9 + 10 + 6 = 25

Probability of drawing red tile = 9/25 = 0.36 = 36%

Probability of drawing blue tile= 10/25 = 0.40 = 40%

Probability of drawing green tile = 6/25 = 0.24 = 24%

Based on the explanation above, the correct answe is option A "The probability of drawing a red tile is 36% and the probability of NOT drawing a red tile is 64%".

6 0

2 years ago

a customer has six $1 bills $35 bills $14 bills 7 quarters 10 dimes 7 nickels and 9 pennies the customer buys a pair of shoes fo

Scrat [10]

49 bills
8 dimes
1 nickel
1 penny

3 0

2 years ago