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Brut [27]
3 years ago
11

Find the sum of nth term of the series 5+7+13+31... .​

Mathematics
2 answers:
Rom4ik [11]3 years ago
4 0
The sequence increases in increments of the sum of the term before and the increment for the term before to the current term. For example, 7+5 is 13 and 13+5 is 18 hence the next term is 13+18 is 31. The next term is thus 80. It’s easier to understand if you draw out the term and the number it increases by
Paha777 [63]3 years ago
4 0

Answer:

2n+3

Step-by-step explanation:

formula=nd+t1-d

n is the term , t1 is term one and d is diffrence between the first two terms

2n+5-2

=2n+3

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How do you find the greatest common denominator, when comparing two numbers? Explain your thought process, in the example I prov
maksim [4K]

Answer:

20 is the greatest common denominator. You can find this by listing the factors of each number. The highest number that can fit into both individual numbers is the common denominator. Since 40 is just 20 doubled, and 20 is just 20 once, it fits into both numbers and is also the highest number that can fit.

4 0
3 years ago
6 16x + 5y = -2<br> 4x - y=-2
Grace [21]

Answer:

x=2/9,y=26/9

Step-by-step explanation:

This is a simultaneous equation

16x+5y=-2..(1)

4x-y=-2...(2)

From (2) make y the subject of formula

y=4x+2..(3)

Substitute (3) into (1)

16x+5(4x+2)=-2

16x+20x+10=-2

36x-10=-2

Add 10 to both sides

36x=8

Divide both sides by 36

x=8/36

Divide both denominator and numerator by 4

x=2/9

Substitute the value x into (3)

y=4(2/9)+2

y=8/9+2

Let the LCM be 9

y=8+18/9

y=26/9

Therefore x=2/9,y=26/9

5 0
3 years ago
HELP!!! It’s due is 20 minutes
Zinaida [17]

Answer:

B

Step-by-step explanation:

33.8 Rounded

Use Pythagorean theorem :)

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4 0
3 years ago
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Find each product or quotient. give all answers in simplest form. -8/12 x -2/13
SashulF [63]

Answer:

0.1025641026

Step-by-step explanation:

-8/12×-2/13

=16/156

=0.1025641026

7 0
2 years ago
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Which expressions can be used to find the coordinates of the midpoint of PQ with endpoints P(3, –1) and Q(–7, –6)?
Tanzania [10]

Step-by-step explanation:

it is the ans of midpoint PQ

3 0
3 years ago
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