All categories

2 years ago

What is the a10 of an=-3n-3?? PLEASE SOME HELP

Mathematics

1 answer:

Andrew [12]2 years ago

8 0

The 10th terms of given arithmetic sequence is -33

Further explanation:

The arithmetic sequence is a sequence where common difference is same for all consecutive terms.

An explicit formula is a general formula that is used to calculate terms of an arithmetic sequence directly.

Given

$a_n=-3n-3$

Here n is the term number

As we have to find the 10th term, we will put n=10

$a_{10}=-3(10)-3\\=-30-3\\=-33$

The 10th terms of given arithmetic sequence is -33

Keywords: Arithmetic sequence, Explicit formula

Learn more about arithmetic sequence at:

#learnwithBrainly

You might be interested in

Problem: In good weather, tomato seeds can grow into plants and bear ripe fruit in as few as 19 weeks. Lorna planted her seeds 1

KatRina [158]

Answer:

the answer is w=19-11=8

Step-by-step explanation:

19-11=8

5 0

3 years ago

Starting at the same point at the same time, Samuel and Heather rode their bikes in the same direction. Samuel traveled 3km/h fa

12345 [234]

Samuel was going with 40 km/h and Heather was going with 37 km/h

Step-by-step explanation:

Starting at the same point at the same time, Samuel and Heather rode their bikes in the same direction

Samuel traveled 3 km/h faster than Heather
After 3.5 h Samuel stopped for a half-hour break, but Heather kept going
Heather was 8 km ahead of Samuel

We need to find how fast each was going

Assume that Heather's speed is x km/h

∵ Heather's speed = x km/h

∵ Samuel traveled 3 km/h faster than Heather

∴ Samuel's speed = x + 3 km/h

The formula of the distance is distance = speed × time

∵ Samuel travel for 3.5 hours

- Find the distance that Samuel traveled in 3.5 h

∴ Samuel distance = (x + 3) × 3.5

- Multiply the bracket by 3.5 to simplify

∴ Samuel distance = 3.5x + 10.5

∵ Samuel took a break for half hour

∵ Heather kept going

∵ At the end of the break, Heather was 8 km ahead of Samuel

- That means Heather was going for 4 hours (3.5 + 0.5), and her

distance is longer than Samuel distance by 8 km

∴ Heather distance = x × 4 = 4x

- Subtract the distance of Samuel from the distance of Heather

and equate the difference by 8

∵ 4x - (3x + 10.5) = 8

∴ 4x - 3x - 10.5 = 8

- Add the like terms in the left hand side

∴ 0.5x - 10.5 = 8

- Add 10.5 to both sides

∴ 0.5x = 18.5

- Divide both sides by 0.5

∴ x = 37

∵ x represents Heather's speed

∴ Heather's speed = 37 km/h

∵ x + 3 represents Samuel's speed

∴ Samuel's speed = 37 + 3 = 40 km/h

Samuel was going with 40 km/h and Heather was going with 37 km/h

Learn more:

You can learn more about the equation of motion in brainly.com/question/568302

#LearnwithBrainly

3 0

3 years ago

If -48 equals 6(a) then a is what<br>

Oksi-84 [34.3K]

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

<em>Expression:</em>

$\frac{-48}{6}=\frac{6}{6}a$

$-8 = a$

Your answer is -8.

I hope this helps!

8 0

3 years ago

A window washer cleaned 38 windows in 2 hours. At this rate, how many windows did he clean in 7 hours? Help before I pass out tr

shutvik [7]

Answer: 133 windows

Step-by-step explanation:

Step 1: 38/2=19

Step 2: 19*7=133

4 0

2 years ago

Read 2 more answers

You spend 15 minutes doing homework. You spend 3 hours watching television. Write the ratio of the amount of time spent doing ho

german

The ratio of the amount of time spent doing homework to the amount of time spent watching TV is 1/12.

The time spent on doing the homework is 15 minutes.
The time spent watching television is 3 hours.
To calculate the ratio, we must have the same units for both quantities.
We have to convert the time spent watching television from hours to minutes.
1 hour is 60 minutes.
3 hours has 3*60 minutes.
3 hours have 180 minutes.
So, the time spent watching television is 180 minutes.
The ratio of the amount of time spent doing homework to the amount of time spent watching TV is 15/180.
We need to simplify the fraction.
15/180 is equal to 1/12.
Thus, the ratio of the amount of time spent doing homework to the amount of time spent watching TV is 1/12.

To learn more about fractions, visit :

brainly.com/question/10354322

#SPJ9

3 0

1 year ago