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astra-53 [7]
3 years ago
13

"I think of a number, take away 1 and multiply the result by 3."

Mathematics
1 answer:
zhenek [66]3 years ago
7 0

Answer:

(x-1)3

3x-3

Step-by-step explanation:

I came up with this.

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Michelle is rolling two six-sided dice, numbered one through six. What is the probability that the sum of her rolls is 8?
Verdich [7]
The probability that the sum of Michelle's rolls is 4 is 0.083
∴ P(A)=0.083
Step-by-step explanation:
Given that Michelle is rolling two six-sided dice, numbered one through six.
To find the probability that the sum of her rolls is 4:

∴ n(s)=36
Let P(A) be the probability that the sum of her rolls is 4
Then the possible rolls with sums of 4 can be written as

n(A)=3
The probability that the sum of her rolls is 4 is given by



=0.083
∴ P(A)=0.083
∴ the probability that the sum of Michelle's rolls is 4 is 0.083

-please give brainliest if correct!
3 0
2 years ago
A sequence is defined recursively by the following rules: f(1)=3f(n+1)=2⋅f(n)−1 Which of the following statements is true about
Radda [10]

Answer:

f(2)=5

f(5)=33

Step-by-step explanation:

The given formula, that recursively defines the sequence is

f(1) = 3 \\ f(n + 1) = 2f(n) - 1

When n=1, we obtain;

f(1+ 1) = 2f(1) - 1 \\ f(2) = 2 \times 3 - 1 \\ f(2) = 6 - 1 \\ f(2) = 5

When n=2, we get:

f(2+ 1) = 2f(2) - 1 \\ f(3) = 2 \times 5 - 1 \\ f(3) = 10 - 1 \\ f(3) = 9

When n=3,

f(3 + 1) = 2f(3) - 1 \\ f(4) = 2f(3) - 1 \\ f(4) = 2 \times 9 - 1 \\ f(4) = 18 - 1 \\ f(4) = 17

When n=4

f(4 + 1) = 2 f(4) - 1 \\ f(5) = 2 \times 17 - 1 \\ f(5) = 34 - 1 \\ f(5) = 33

When n=5,

f(6) = 65

4 0
3 years ago
Leanne can type 212 words in 4 minutes what is her average typing speed in one minute
Alinara [238K]

212 words /4 minutes

53 words per minutes

6 0
3 years ago
Use rounding or compatible numbers to estimate 222 plus 203
Vesnalui [34]
200 can be rounded down to 200, which is easy to add with.  Thus, an estimate is 222+200=422.

Alternatively, you could round 222 up a bit, to get 225+200=425.  This is actually the correct answer, but this rounding doesn't make the calculation easier, so if you needed a quick estimate I'd go with the first option.
6 0
3 years ago
This is easy but like for this question I got like 3 different answers and now I am mad confused so can somebody just explain ho
Phoenix [80]

Answer:

4

Step-by-step explanation:

f/2-19=-17

f-38=-34

f=-34+38

f=4

5 0
3 years ago
Read 2 more answers
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