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nasty-shy [4]
3 years ago
10

What is an equation for (0,1), (1,3), (2,9), (3,27), (4,81)

Mathematics
1 answer:
Gennadij [26K]3 years ago
4 0

Answer:

y = 3^x

Step-by-step explanation:

Each y is 3 times the last one, so it's geometric, so exponential.  3 should appear as the base.

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you have 4 4/5 cups of rice. each serving of rice takes 2/5 of a cup. how many servings can you make?
Leona [35]

Answer:

12 cups

Step-by-step explanation:

2/5 times 12 =4 4/5

8 0
3 years ago
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Find the 8th term of the arithmetic sequence -2x+5−2x+5, -7x+8−7x+8, -12x+11, ...
miss Akunina [59]

Answer:

  -37x+26

Step-by-step explanation:

The x-coefficients have the sequence ...

  -2, -7, -12, ...

which has first term -2 and common difference of (-7 -(-2)) = -5. Then the 8th x-coefficient is ...

  -2 + (-5)(8 -1) = -37

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The constants have the sequence ...

  5, 8, 11, ...

which has first term 5 and common difference 8 -5 = 3. Then the 8th constant term is ...

  5 +(3)(8 -1) = 26

The 8th term of the sequence is -37x +26.

_____

The general term of an arithmetic sequence with first term a1 and common difference d is ...

  an = a1 +d(n -1)

In the above, we have used n=8 to find the 8th term.

7 0
3 years ago
ASAP!! Please help me. I will not accept nonsense answers, but will mark as BRAINLIEST if you answer is correctly with solutions
ololo11 [35]

Answer:

The answer would be f(a)=-1

-AC I hope this helps<3

7 0
3 years ago
If you draw a card with a value of three or less from a standard deck of cards, I will pay you $43. If not, you pay me $11. (Ace
valina [46]

If W is a random variable representing your winnings from playing the game, then it has support

W=\begin{cases}43&\text{if you draw something with value at most 3}\\-11&\text{otherwise}\end{cases}

There are 52 cards in the deck. Only the 1s, 2s, and 3s fulfill the first condition, so there are 12 ways in which you can win $43. So W has PMF

P(W=w)=\begin{cases}\frac{12}{52}=\frac3{13}&\text{for }w=43\\1-\frac{12}{52}=\frac{10}{13}&\text{for }w=-11\\0&\text{otherwise}\end{cases}

You can expect to win

E[W]=\displaystyle\sum_ww\,P(W=w)=\frac{43\cdot3}{13}-\frac{11\cdot10}{13}=\boxed{\frac{19}{13}}

or about $1.46 per game.

3 0
2 years ago
Need help with test asap
zhuklara [117]

Answer:

It's c im taking the same test lol

Step-by-step explanation:

4 0
2 years ago
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