4 years ago

What are the next two numbers for 486, 162, 54, 18,

Mathematics

1 answer:

Andru [333]4 years ago

6 0

Each number is 1/3 of the number before it.

After 18 come 6, 2, 2/3, 2/9, 2/27, 2/81, ... etc.

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PLZ I NEED HELP ANSWER QUICK

My name is Ann [436]

Theres always 180 degrees in a flat line angle thingy you need answers fast so im not looking up what its called but 180-125=55 and then you 55-1=54 then 54/3=18!!!!!

6 0

3 years ago

If a Variable has a normal distribution with mean 30 and standard deviation 5 find the probability that the variable will be bet

Alexus [3.1K]

Answer:

P(25 < x < 37) = 0.77

Step-by-step explanation:

Given - If a Variable has a normal distribution with mean 30 and standard deviation 5

To find - find the probability that the variable will be between 25 and 37.

Proof -

Given that,

Mean, μ = 30

S.D, σ = 5

Now,

$z = \frac{x-\mu}{\sigma}$ ~ N(0,1)

Now,

P(25 < x < 37)

= $P(\frac{25 - 30}{5} < z < \frac{37 - 30}{5} )$

= P(1 < z < 1.4)

= P(z < 1.4) - P(z < -1)

= 0.9192 - 0.1587

= 0.7605

≈ 0.77

∴ we get

P(25 < x < 37) = 0.77

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3 years ago

You have three items on your menu: pasta for $12, pizza for $15, and salad for $10. What is the average price of an item on your

dem82 [27]

Answer:

$13

Step-by-step explanation:

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3 years ago

Find the 15th term of the geometric sequence 2, 6, 18,...

kenny6666 [7]

Answer:

Step-by-step explanation:

6÷2 = 3 and 18÷6 = 3 so: q = 3

$a_n=a_1\cdot q^{n-1}\\\\a_1=2\\q=3\\n=15\\\\a_{15}=2\cdot3^{15-1}\\\\a_{15}=2\cdot3^{14}\\\\a_{15}=9\,565\,938$

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3 years ago

Dear Moderators of Brainly,

Dvinal [7]

Answer:

:( Brainly can be so unfair sometimes.

Step-by-step explanation:

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3 years ago

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