MATHEMATICS HIGH SCHOOL

Which choice is the explicit formula for the following geometric sequence

Answers

Answer 1

Answer:

Answer:

B: $a_n= 0.2(-0.3)^(n-1)$

Step-by-step explanation:

Geometric sequence

0.2, -0.06, 0.018,-0.0054,0.00162....

General explicit formula is $a_n= a_1(r)^(n-1)$

Where r is the common ratio and a1 is the first term

a1 is 0.2 (first term)

we need to find out common ratio 'r'

To find 'r' divide second term by first term

$(-0.06)/(0.2) =-0.3$

Plug in the values in the general formula

$a_n= a_1(r)^(n-1)$

$a_n= 0.2(-0.3)^(n-1)$

Answer 2

Answer: Hello,

2/10,-6/100,18/1000,-54/10000,162/100000;...

a(n+1)/a(n)=-3/10
a(0)=2/10*1

a(n)=2/10* (-3/10)^(n-1)

Answer B

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Help me please ?

Answers

Answer:

can you show the answers?

Step-by-step explanation:

Answer:

Step-by-step explanation:

What is the x-intercept of the graph of the function f(x) = x^2 − 16x + 64?

Answers

Answer:

Step-by-step explanation:

What is the missing sequence number 8,14,21,29,?,3

Answers

Let's thing a little bit...

we have...

8

14

21

29

Can you see it now?!

$8+6=14$

$14+7=21$

$21+8=29$

so

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Can somebody PLEASE help meIn a SRS of 80 teenagers, the average number of text messages received per day is found to 50. If the standard deviation of number of texts received is known to be σ = 12, find the 95% confidence interval for the number of text messages received.

Answers

To solve this problem you have to find out what the value of +/- Z is that encloses 95% of the area under the normal distribution curve. For this you can use this formula: Please see the attached image.

Find the upper and lower limits of x, corresponding to +Z and -Z respective.

I hope this helps, Regards.

There are 25 students in Mrs. Venetozzi’s class at the beginning of the school year, and the average number of siblings for each student is 3. A new student with 8 siblings joins the class in November.The average number of siblings that each student has is

Select a Value
* larger than the original average.
*smaller than the original average.
*the same as the original average.

Answers

Adding the student with eight siblings will increase the class average amount of siblings because this student has more siblings than the average.

Therefore, the average number of siblings that each student has is larger than the original average.

The average number of siblings that each student has is larger than the original average.

What is the Average number of students?

We are told that the average number of siblings for the 25 students is 3.

Now, a new student with 8 siblings joins the class.

This addition will increase the class average amount of siblings due to the fact that this new student has 8 siblings which is 5 more than the class average.

Thus, we can conclude that the average number of siblings that each student has is larger than the original average.

Read more about Average number at; brainly.com/question/20118982

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Solve a magic square of 3 by 3 squares
numbers are- 20 21 22 23 24 25 26 27 28

Answers

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[22] [24] [26]
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The constant sum is 72.

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