1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Naily [24]
3 years ago
15

Write an explicit rule for the geometric sequence (answers down below) :

Mathematics
1 answer:
den301095 [7]3 years ago
5 0

Answer:

Correct answer is third from the top an = 27 · (1/3)∧(n-1)

Step-by-step explanation:

Given geometric sequence :  27, 9, 3, 1,....

First term a1= 27, second term a2= 9, third term a3= 3 etc...

Standard form of the n-th term is

an = a1 · q∧(n-1)

We will find quotient when we divide second term with first and third with second

q = a2/a1 = a3/a2 = 9/27 = 3/9 = 1/3

Formula fot n-th term is

an = 27 · (1/3)∧(n-1)

God with you!!!

You might be interested in
The table below shows some inputs and outputs of the invertible function f with domain all real numbers.
Alexandra [31]
Hi hi I hope you know that I
8 0
3 years ago
FAR is to DISTANCE as DEEP is to __?__.
sammy [17]

Answer:

depth

Step-by-step explanation:

far is a describing distance

deep is describing depth

7 0
3 years ago
andrew has seven fewer coins than casey. bob has three more than twice as many coins as andrew. altogether, they have 502 coins.
7nadin3 [17]
Let C is the number of coins Casey has
<span>Andrew has seven fewer coins than casey = C - 7
</span><span>Bob has three more than twice as many coins as Andrew = 2(C-7) + 3
</span>altogether, they have 502 coins = C + (C - 7) + 2(C-7) + 3 = 502

Now solve for C:
C + (C - 7) + 2(C-7) + 3 = 502
C + C - 7 + 2C  - 14 + 3 = 502
4C - 18 = 502
4C = 502 + 18
4C = 520
C =520/4
C = 130

So Casey has 130 coins
Andrew: C - 7 = 130 - 7 = 123
Bob: 2(C-7) + 3 = 2(130 - 7) + 3 = 2(123) + 3 = 246 + 3 = 249

Proof: 130 + 123 + 249 = 502

Answer: Bob has 249 coins

6 0
3 years ago
Find the difference of -54- (-34)<br> A. -86<br> B. 18<br> C. -18<br> D. -86
Andrej [43]

Answer:

tanga talaga

Step-by-step explanation:

-20 answer

6 0
2 years ago
Read 2 more answers
Help????? I don’t know which is right
zhenek [66]

Answer:

C

Step-by-step explanation:

Given

tanθ = \frac{1}{2} = \frac{opposite}{adjacent}

This is a right triangle with legs 1 and 2

Using Pythagoras' identity

hypotenuse² = 1² + 2² = 1 + 4 = 5 ( take square root of both sides )

hypotenuse = \sqrt{5}

θ is in the 3rd quadrant where sinθ < 0 , then

sinθ = \frac{opposite}{hypotenuse} = - \frac{1}{\sqrt{5} } ← rationalise the denominator

       = - \frac{1}{\sqrt{5} } × \frac{\sqrt{5} }{\sqrt{5} }

       = - \frac{\sqrt{5} }{5} → C

6 0
3 years ago
Other questions:
  • Gary is riding from Town A to Town
    9·1 answer
  • An engineer on the ground is looking at the top of a building. The angle of elevation to the top of a building is 38°. The engin
    6·1 answer
  • I get
    10·1 answer
  • Can anyone help me with this, I gave a picture so you can figure it out
    9·1 answer
  • A mint produces 150,000 souvenir coins each year. In a random sample of 400 coins, 3 have a misprint. Predict the number of coin
    11·1 answer
  • A. 3<br> B. 1/3<br> C. -3<br> D. -1/3
    15·1 answer
  • 6(x+1)=24 solution to equation
    7·1 answer
  • What is 1×3×764? <br><br><br>explain! ! Pease explain answer! ​
    10·1 answer
  • Please help Choices are in picture ಥ‿ಥ
    10·2 answers
  • Sofia bought $38 worth of video games. She had a coupon that allowed her to save 8% on her purchases.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!