3 years ago

Which of the following is a geometric sequence?

1 answer:

7 0

Hello,

A: is an arithmetic sequence: f(n)=3+(n-1)*4

B: is a Fibbonacci's sequence f(n+2)=f(n+1)+f(n), f(1)=4,f(2)=6

C: is a geometric sequence :first term =4 ratio=4

f(n)=4*4^(n-1)=4^n

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Can anyone please help me with this w

expeople1 [14]

5=27
N=5

Explanation=there’s a difference between each number of 5

Eg:12-7=5
17-12=5
22-17=5
So that means 22+5=27 and n=5 since it is the number difference
(I hope this helps you out)

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3 years ago

The length of a rectangle is four times the width. The perimeter of the rectangle is 45 inches. Write a system of

Yakvenalex [24]

Answer:

81 square inches.

Step-by-step explanation:

Draw a diagram to represent what you know.

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You can rearrange to find the value of a side you've denoted as some unknown variable.

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3 years ago

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QveST [7]

The answer is -6x - 42

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3 years ago

Read 2 more answers

A triangle has a base of 4x-7 and a height of 2x + 3. Find the area.

wolverine [178]

Answer:

area = ‐11

Step-by-step explanation:

hope this is correct and helps

7 0

3 years ago

How to find the gradient of line segment joining each pair of points?

yarga [219]

Answer:

1/3

Step-by-step explanation:

A(xA, yA) = A (3,1)

B(xB,yB)=B(5,5)

the gradient=(yB-yA)/ (xB-xA)=(5-1)/(5-3)=4/2=2

C(4,7),D(10,9)

the gradient=(yD-yC)/(xD-xC)=(9-7)/(10-4)=2/6=1/3

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3 years ago