What is the explicit formula for this geometric sequence? 27, 9, 3, 1, ...

Mathematics

2 answers:

ahrayia [7]2 years ago

4 0

Answer:

divide by 3 i think

Step-by-step explanation:

hope this helps!

gayaneshka [121]2 years ago

4 0

Answer:

divided by 3

Step-by-step explanation:

divide each number by three

You might be interested in

4x-2y=3<br> Solve for y<br> Please help right away!

baherus [9]

I do believe it is y=1/2+3

5 0

3 years ago

The Martinez family has gallon of orange juice in the refrigerator. How many cups of orange juice are in the refrigerator?

guapka [62]

Answer:

there are 16 cups of orange juice

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

If you earn $1200 per month and you expect your earnings to increase by 10% per year, what monthly salary would you be making in

Sergio [31]

So u turn the percent into a decimal.
0.10
Now multiply 1200 * 0.10
1200*0.10= 120 ( 120 is the amount that is gonna increase)
So if it says 5 years, than your gonna multiply 120 * 5
120*5 =600
So your gonna add 600 to 1200.
So in five years your gonna be making 1,800.
An easier way would be to use prt
Principle * rate * time
1200 * 0.10* 5
= 600
So now you just add 600 to 1200
= 1800

7 0

3 years ago

Suppose in the University of Manitoba, 40% of the students live in apartments. If 600 students are randomly selected, then the a

just olya [345]

Answer:

$P(200\leq X\leq 400)=P(\frac{200-240}{12}\leq \frac{X-\mu}{\sigma}\leq \frac{400-240}{12})=P(-3.33\leq Z \leq 13.33)$

$=P(Z$

So then the correct answer would be:

B) .9996

Step-by-step explanation:

The exact way to solve this problem is using the binomial distribution, assuming that our random variable of interest is "number of students living in apartments" represented by X and $X \sim Bin(n=600, p =0.4)$

And we want this probability:

$P(200 \leq X \leq 400) [tex]In order to find this probability we can use the foloowing excel code:"=BINOM.DIST(400,600,0.4,TRUE)-BINOM.DIST(199,600,0.4,TRUE)"And we got:[tex] P(200 \leq X \leq 400) =0.999675[tex]But for this case the problem says that we need to approximate, so then we can use the normal approximation to the normal distribution. We need to check the conditions in order to use the normal approximation.
[tex]np=600*0.4=240\geq 10$