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4 years ago

2. What is the missing number pattern 1, 3, 9, -, 81?

Mathematics

1 answer:

oksano4ka [1.4K]4 years ago

7 0

Answer:The missing number is 27

Step-by-step explanation:It is a matter of spotting the relationship if you can. If not obvious you will need to experiment to find what type of sequence it is; geometric or arithmetic.

Observe that there is a connection of 3 in the numbers 1,3,9 in that

Lets experiment with that for a moment!

If we apply the same rule to 3 what will we get?

which is correct.

Ok. lets apply the same rule yet again!

Using 27, if we apply the rule once more and get 81 we have found the correct 'rule' for this sequence.

'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

This works so the missing number is 27

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3 years ago

Read 2 more answers

If trap is an isosceles trapezoid, what is the value of x

Burka [1]

Answer:

Option E ⇒ <u>x = 19</u>

Step-by-step explanation:

See the attached figure.

TRAP is an isosceles trapezoid

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So, 5x+9 + 4x = 180

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4 years ago

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maw [93]

Answer:

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Step-by-step explanation:

At first we use "BODMAS" rule.

Given,

(3.5×10^13)-(1.4×10^12)/3×10^9

So, we will break the brackets at first. With the help of excel, we can get the desired result. The following images will show you the step-by-step result.

Use "Number" instead of "general" in the excel sheet. You can use calculator too.

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3 years ago

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Aleonysh [2.5K]

Answer:

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Step-by-step explanation:

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