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Katyanochek1 [597]
2 years ago
10

4.12 x 2.1= can i get answer and work please

Mathematics
2 answers:
alexdok [17]2 years ago
3 0

Answer:

8.652

Step-by-step explanation:

Ignore the points and multiply, then you see that 4.12 has two decimal places and that 2.1 has one decimal place, when you add them there is three decimal places.

412 x 21 = 8652

4.12 x 2.1 = 8.652

Pls mark me as brainliest!!!!

Alja [10]2 years ago
3 0

Answer:

Please mark as Brainliest!!

Step-by-step explanation:

Multiply  2.1  by  4.12  = 8.652

Ignore the points and multiply, then you see that 4.12 has two decimal places and that 2.1 has one decimal place, when you add them there is three decimal places.

Process:

412 x 21 = 8652

4.12 x 2.1 = 8.652

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What is the common ratio and explicit formula for -2,6,-18,54?
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Answer:

The explicit formula for a given geometric sequence is of the form

a_{4} =\frac{1}{(a_{1})^4}

Step-by-step explanation:

Given sequence is {\{-2,6,-18,54}\}

Let a_{1}=-2,a_{2}=6,a_{3}=-18,a_{4}=54

To find the common ratio r:

r=\frac{a_{2}}{a_{1}}

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r=\frac{a_{3}}{a_{2}}

=\frac{-18}{6}

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Therefore r=-3

Therefore common ratio is -3

Therefore given sequence is geometric sequence.

The explicit formula for a geometric sequence is a_{n}=a_{1}^{r-1}, where common ratio is r.

From given sequence we are having  r=-3

Therefore the explicit formula for a given geometric sequence is of the form a_{4} =a_{1}^{-3-1}

a_{4} =a_{1}^{-4}

a_{4} =\frac{1}{(a_{1})^4}

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Two fair dice are rolled 3 times and the sum of the numbers that come up is recorded. Find the probability of these events. a. T
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Answer:

Step-by-step explanation:

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