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Olegator [25]
3 years ago
14

Brainliest answer

Mathematics
1 answer:
Flura [38]3 years ago
5 0

A geometric sequence is a sequence of numbers that follows a pattern where the next term is found by multiplying by a constant called the common ratio, q:

a_n=a_{n-1}\cdot q=(a_{n-2}\cdot q)\cdot q=a_{n-2}\cdot q^2=...,\\ a_n=a_1\cdot q^{n-1}.

Given the functions f(n)=11 and g(n)=\left(\dfrac{3}{4}\right)^{n-1}, you can consider a_n=11\cdot \left(\dfrac{3}{4}\right)^{n-1} as n-th term of the geometric sequence with first term a_1=11 and common ratio q=\dfrac{3}{4}.

For n=9,

a_9=11\cdot \left(\dfrac{3}{4}\right)^{9-1} =11\cdot \left(\dfrac{3}{4}\right)^8=1.101.

Answer: the correct choice is B.

You might be interested in
Which statements are true based on the diagram? Select three options.
Aneli [31]

Answer:

On Edge its:

Option A: Points N and K are on plane A and plane S.

Option C: Point P is the intersection of line n and line g.

Option D; Point's M, P, and Q are noncollinear.

Are Correct.

Step-by-step explanation:

5 0
3 years ago
Factor 4x 2 + 12x + 5 . (2x + 5)(2x + 1)
Juliette [100K]
Factor
in form
ax²+bx+c form
use the ac method
1. mulitply a and c
2. factor the result such that the 2 factors add to b
3. split b into those 2 factors
4. group the terms
5. undistribute common factors
6. undistribute again





first multiply ac
4 times 5=20
now
what 2 numbers multiply to 20 and add to 12
2 and 10
4x²+2x+10x+5
group
(4x²+2x)+(10x+5)
undistribute
2x(2x+1)+5(2x+1)
undistribute the (2x+1)
(2x+1)(2x+5) is factored form whih you have there, nice
8 0
3 years ago
Can you show how you did it?<br> 8.31 - 3.43 =
d1i1m1o1n [39]

Answer:

4.68

Step-by-step explanation:

Remember to line up the decimal point. Subtract as ordinarily.

8.31

-3.43

--------

4.68

4.68 is your answer

~

7 0
3 years ago
-2x-y=-5 In slope intercept form please! :)
schepotkina [342]

Answer:

-2x - y = -5 in slop intercept form would be <u>y = -2x + 5 </u>

Step-by-step explanation:

-2x - y = -5

first add -2x to the left side to move it to the right side because whatever you do to one side u do to the other.

-y = -5 + 2x

divide by -1 on the whole equation

y = -2x + 5 is your answer.

8 0
3 years ago
Will mark brainliest if CORRECT
Annette [7]

Answer:

For every 7 hair bands there will be 4 ribbons

7 hair bands →→ 4 ribbons

14 hair bands →→ 8 ribbons

21 hair bands →→ 12 ribbons

etc.

6 0
3 years ago
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