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3 years ago

What is the explicit formula for this sequence 2,6,18,54,162

Mathematics

1 answer:

Nina [5.8K]3 years ago

8 0

Answer:

x3 just multiply 2 x 3 and then multiply the 6 from that by 3 to get 18 and so on

Step-by-step explanation:

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Estimate the unit rate to the nearest hundredth $2.35

Scilla [17]

It would be $2.40. 4 or less just ignore 5 or more add 1 more

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3 years ago

Which gives the correct values for points A, B, C, and D?<br>

insens350 [35]

Answer:

The thing that gives corrects values for point A,B,C and D is....

Add a pic

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=7%20-%204%20%5Cfrac%7B3%7D%7B4%7D%20" id="TexFormula1" title="7 - 4 \frac{3}{4} " alt="7 - 4 \

AlladinOne [14]

7 - 4 3/4

= 28/4 - 19/4 = 9/4

Answer is 2 1/4 or 2.25.

5 0

4 years ago

Select all the expressions that equal 6-10,

alukav5142 [94]

Answer:

what are the expressions?

Step-by-step explanation:

6 0

3 years ago

At a peace summit, seven Hatfield and nine McCoy family

katrin2010 [14]

Answer:

0.525 = 52.5% probability that the two are from different families.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

In this problem, the order in which the two participants are selected is not important, so we use the combinations formula to solve this question.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

Desired outcomes:

1 from the Harfield family(from a set of 7).

1 from the McCoy family(from a set of 9). So

$D = C_{7,1}*C_{9,1} = \frac{7!}{1!6!}*\frac{9!}{1!8!} = 7*9 = 63$

Total outcomes:

2 from a set of 16. So

$T = C_{16,2} = \frac{16!}{2!14!} = 120$

Probability:

$p = \frac{D}{T} = \frac{63}{120} = 0.525$

0.525 = 52.5% probability that the two are from different families.

3 0

3 years ago