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3 years ago

Which set is a function

Mathematics

1 answer:

julsineya [31]3 years ago

3 0

B. Is the answer to your question

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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

2 years ago

What does SOH,CAH,TOA mean?

Mice21 [21]

Answer:

Use Sin if Opposite Hypotenuse, Use Cosine if Adjacent Hypotenuse, and Use Tangent if Opposite Adjacent

7 0

3 years ago

Terrell needs the total weight of his backpack, water jug, and sleeping bag to be less than 11 kilograms. His backpack weighs 9,

Ket [755]

He did not divide his milligrams by the proper factor. He treated it as if it were only kilograms. He should have divided by a million.

5 0

3 years ago

Jill has 4 bags of marbles. There are 3red, 5green,2 yellow, and 6black marbles I. Each bag. How many marbles does Jill have? Sh

Eddi Din [679]

3+5+2+6=16 in each bag multiply or divide sorry not that much of an answer

6 0

3 years ago

Read 2 more answers

Perform the indicated operation. (-50) ÷ (-2) 48 -48 -25 25

mezya [45]

Answer:

Step-by-step explanation:

Remember that multiplication and division will result in a positive number if no or two negative signs are present. So here, you ignore the negative signs.

All you really have to do is divide 50 by 2, which results in 25.

7 0

3 years ago

Read 2 more answers