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Nostrana [21]
3 years ago
14

What is the sum of 3 times x and 5

Mathematics
1 answer:
hichkok12 [17]3 years ago
8 0

Answer:

×=5+3

×=8

Step-by-step explanation:

the answer is ×=8

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What is the recursive of this:
abruzzese [7]

Answer:

a_n=a_{n-1}+2^{n-1}\ \ n>1

Step-by-step explanation:

Recursive Sequence

We are given the following sequence:

-1, 1, 5, 13...

It's required to find the recursive term for the sequence.

A recursive formula calculates each term as a function of one or more previous terms.

To find the recursive formula, we must find a pattern and transform it into a math expression.

Let's write the sequence, and below it, the difference of consecutive terms:

-1,   1,   5,   13...

+2,  +4,  +8

Note the difference between consecutive terms is always a power of 2, starting from 2^1, 2^2, 2^3.

The exponent is one less than the number of the term, thus:

a_n-a_{n-1}=2^{n-1}

Thus:

\mathbf{a_n=a_{n-1}+2^{n-1}\ \ n>1}

Testing:

n=1

a_1=-1 (given).

n=2

a_2=a_{1}+2^{2-1}=-1+2^{1}=1

n=3

a_3=a_{2}+2^{3-1}=1+2^{2}=5

n=4

a_4=a_{3}+2^{4-1}=5+2^{3}=13

3 0
3 years ago
I don’t have a question but both of the answers are wrong i just did it right now and i got it wrong but it said the answer is 6
zlopas [31]
Answer: x = 6
(WORK SHOWN BELOW)

4 0
2 years ago
Given the following perfect square trinomial, fill in the missing term. (2 points)<br> 9x^2 +___+25
Zielflug [23.3K]

Answer:

30x

Step-by-step explanation:

missing must be 2×3x×5=30x

9x²+30x+25=(3x+5)²

5 0
3 years ago
Lin parachutes from a plane at a height of 22,000 ft above sea level. Several minutes later, she notes from an instrument on her
romanna [79]
12,000 feet above sea level
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3 years ago
What radian measure is equivalent to 900°?<br> 5n<br> 10n<br> 1/5n<br> 9n
Sergeu [11.5K]
9n is the answer to this question
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3 years ago
Read 2 more answers
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