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4 years ago

What recursive formula can be used to represent the sequence 2,4,6,8,10,...

Mathematics

2 answers:

hodyreva [135]4 years ago

8 0

Answer:

Step-by-step explanation:

Given the sequence 2,4,6,8,10...

The sequence given is an arithmetic sequence

The nth term of an arithmetic sequence is given as:

Tn = a+(n-1)d where;

a is the first term if the sequence

n is the number of terms

d is the common difference

From the sequence above:

a = 2, d = 4-2 = 6-4 = 8-6 = 2

d = 2

Substituting the given values in the formula we have:

Tn = 2+(n-1)2

Tn = 2+2n-2

Tn = 2n+2-2

Tn = 2n

The recursive formula is Tn = 2n

Irina18 [472]4 years ago

3 0

Hello :
10-8=8-6=6-4=4-2=2(common diffrence)of aritmetic sequence
a recursive formula for the <span>sequence is : An+1=An +2</span>

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What is the decimal expansion for 12 8/9 ?

d1i1m1o1n [39]

Answer:

The decimal form of the fraction is 12.88...

6 0

3 years ago

Please help fast!! Katrina has $3.60 worth of nickels and dimes. She has 46 coins in total. How many nickels and dimes does she

Igoryamba

Answer:

20 nickels and 26 dimes

Step-by-step explanation:

She has $3.60 in nickels and dimes
a nickel is $0.05 and a dime is $0.10
let n be the number of nickels and d be the number of dimes
thus the first equation is 3.6 = 0.05n +0.1d
If she has 46 coins then n + d = 46
then n = 46 - d
sub n = 46 - d into 3.6 = 0.05n +0.1d
3.6 = 0.05(46 - d) + 0.1d
3.6 = 2.3 -0.05d+0.1d
1.3 = 0.05d
26 = d
sub d = 26 into n+d=46
n+26=46
n=20
Check by subbing n=20 and d=26 into 0.05n +0.1d
0.05(20) +0.1(26)
1+2.6 = 3.6

6 0

3 years ago

I don’t know how to do this

zalisa [80]

Answer:

½÷3=0.17

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3 years ago

What is the answer to this thing?

olganol [36]

Answer:

area=108

Step-by-step explanation:

length times width

8x6=48

10x4=40

5x4=20

---------

Add them all together 48+40+20 =108

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3 years ago

Nora is in the business of manufacturing phones. She must pay a daily fixed cost to rent the building and equipment, and also pa

vaieri [72.5K]

9514 1404 393

Answer:

c = 150p + 1000

Step-by-step explanation:

We know the variable cost is 150 per phone, so the total cost will be ...

c = 150p +b . . . . for some value b

We also know the value of c for 8 phones, so we can find b:

2200 = 150(8) + b

2200 -1200 = b = 1000

Then the desired equation is ...

c = 150p + 1000

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3 years ago