3 years ago

Find the nTH term of this sequence: 15, 12, 9, 6

Mathematics

2 answers:

shtirl [24]3 years ago

4 0

Answer:

-3n + 18

Step-by-step explanation:

an = dn + (a - d)

The difference is -3.

The first term is 15.

an = -3n + (15- (-3))

an = -3n + 15 + 3

an = -3n + 18

Elden [556K]3 years ago

3 0

Answer:

aₙ= 18 -3n

Step-by-step explanation:

15, 12, 9, 6

Given AP with first term= 15 and common difference= -3

aₙ=a₁+(n-1)d= 15+(n-1)*(-3)= 15 - 3n+3= 18-3n

aₙ= 18 -3n

You might be interested in

Under her cell phone plan, Lily pays a flat cost of $40 per month and $4 per gigabyte.

lorasvet [3.4K]

Answer:

Step-by-step explanation:

60-44

5 0

3 years ago

Which Event Has Exactly 12 Outcomes A.) Tossing A Coin And Randomly Choosing One Of The 4 Different Cards B.) Rolling A Number C

Katen [24]

Pretty sure it’s D because 6•2=12

3 0

3 years ago

The length of a rectangle is 4 cm less than twice the width. Express as an integer the maximum width of the rectangle when the p

Paladinen [302]

Let, the width = x
length = 2x - 4

Perimeter = 2(l+w)
Substitute their values,
72 = 2(x+2x-4)
72 = 2(3x-4)
6x - 8 = 72
6x = 80
x = 80/6
x = 13.3

In short, Your Answer would be 13.33 cm

Hope this helps!

7 0

3 years ago

At a local grocery store, a 16-ounce bottle of apple juice costs $3.20. What is the cost what is the cost of apple juice per oun

Ksivusya [100]

$5 \: ounce \:$

6 0

4 years ago

Can somebody plz help me Q 4-5-6<br> Plz and thank you

yarga [219]

I think it’s 7 hope this helps you

3 0

4 years ago