All categories

3 years ago

What is the rule for this sequence 6, 18, 54, 162, 486

Mathematics

2 answers:

ahrayia [7]3 years ago

3 0

Multiply the number by 3

Natasha_Volkova [10]3 years ago

3 0

6•3 = 18 •3 =54 • 3 =162 • 3 =486

They all have a factor of 3 and are able to multiply 3 times for each number to get the next.

You might be interested in

The sum of twice a number and 28 equals 36 plus the number

juin [17]

<span>2X+28=36+X
2X-X=36-28
X=8
thats the answer</span>

8 0

3 years ago

Read 2 more answers

Find the probability of obtaining exactly one tail when flipping nine coins. Express your as fraction terms on a rounded the nea

Sveta_85 [38]

Answer:0.017578

Step-by-step explanation:

Given

Nine coins are flipped

So the probability of getting a tail is $\frac{1}{2}$

Because on flipping a coin could either yield Head or tail

so getting a tail on nine trails is $\frac{1}{2^9}$

but this tail can come on first coin or second or third ....

So there are 9 possible ways

So probability of getting a tail on flipping nine coin is $9\times \frac{1}{2^9}$

$=\frac{9}{2^9}=0.017578$

6 0

3 years ago

of A squirrel’s hidden nuts, for every 5 that get found, there are 3 that do not get found. A squirrel hid 40 nuts all together.

den301095 [7]

Answer:

The answer is 15

Step-by-step explanation:

because so the squirrel hid 40

||||| ||| 8

||||| ||| 16

||||| ||| 24

||||| ||| 32

||||| ||| 40

so if you count the all the group of 3 that will get your answer.

let me know if this make sense.

8 0

3 years ago

Which equation has no real solutions?

olasank [31]

Answer:

Step-by-step explanation:

−b±√b2−4ac

−(2)±√(2)2−4(2)(15)

2(2)

−2±√−116

and there is really no solution

6 0

3 years ago

Mr. Arellano decided to make cookies for 7th grade students. He was supposed to mix 4 cups of flour, 1.2 cups of sugar, and 2.5

Ahat [919]

Answer:

0.6 cups of sugar and 1.25 cups of chocolate chips

Step-by-step explanation:

We can begin to solve this problem with a simple proportion:

$\frac{4}{2}$ = $\frac{1.2}{x}$ = $\frac{2.5}{y}$

(x = the new # of sugar y = new # of chocolate chips)

In order to keep everything proportional, we must abide by the scale factor shown with the the flour.

Basically, if we're going to use three times the amount of flour we actually need, then we need to triple all our other ingredients.

We can see that the scale factor is one half, so

x = 1.2 * 0.5

and

y = 2.5 * 0.5

This means that:

x = 0.6

y = 1.25

This means that he has to use 0.6 (or 3/5) cups of sugar and 1.25 (or 9/8) cups of chocolate chips.

8 0

3 years ago