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Aleksandr [31]
3 years ago
14

The table below represents a geometric sequence.

Mathematics
1 answer:
UkoKoshka [18]3 years ago
5 0

Answer:

B. f(1)=4

f(n)=5\cdot f(n-1), n\ge2

Step-by-step explanation:

From the table the first term of the geometric sequence is:

f(1)=4

We can use the first term and the second term to determine the common rtaio.

The common ratio is

r=\frac{20}{4}=5

Note that, we could have also used the 3rd and second term to find the common ratio.

The recursive formula is given by:

f(n)=r\cdot f(n-1)

We plug in the common ratio to get:

f(n)=5\cdot f(n-1)

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1.)
The term (2+8) is the amount of fabric Ali bought. You know this because in the problem, it says that she buys “2 white pieces and 8 blue pieces”

2.)
The terms of the equation are
k and 2f

These are the terms because they are separated by the addition sign

3.) $36
You would first find rate per sand which. To find this, you would do:
9/2
This will give you
4.5. Now, you multiply that by 4. That gives you 36.

4.) The skateboard costs 150

How?
30 is 20% of the price. 20x5=100. So, to find the total amount, you would multiply 30 by 150.

5.) About 50 miles an hour.
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Have a good night :)
5 0
3 years ago
Please help me and can you explain thank you
Rufina [12.5K]

Answer:

(4,2), there is already a 4 in x value

Step-by-step explanation:

4 0
3 years ago
Can you guys answer this ?​
nika2105 [10]

Answer:

-7

...................

7 0
3 years ago
Read 2 more answers
What is the ratio of 1/5 to 5/15 ?help​
timama [110]
1/5:1/3? I’m not sure..
3 0
3 years ago
Read 2 more answers
What is the value of 7 to the 4th power
zhenek [66]

Answer:

The value is 2401

Step-by-step explanation:

First we need to understand what's means 7 to the 4th power, or 7^4.

7 is the power base, the power base is the number that we are going to repeat the number of times the exponent says.

4 is the exponent, which will tell us how many times to multiply 7.

So , then we would have

1)                7 x 7 x 7 x 7

2)                  49 x 7 x 7

3)                     343 x 7

4)      finally       2401

3 0
3 years ago
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