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emmainna [20.7K]
2 years ago
11

What is a rule for the nth term of the sequence 1/2, 1/4, 1/6, 1/8, ...?

Mathematics
2 answers:
rewona [7]2 years ago
4 0

Answer:

1/18

Step-by-step explanation:

the denominator is going up by 2s

pls brainliest

Art [367]2 years ago
3 0

Answer:

1/18

Step-by-step explanation:

You might be interested in
The first two terms of an arithmetic sequence are 7 and 4. Find the 7th term.
kobusy [5.1K]

EXPLANATION

If the first two terms of an arithmetic sequence are 7 and 4, then we know that an arithmetic sequence has a constant difference d and is defined by

a_n=a_1+(n+1)d

Check wheter the difference is constant:

Compute the differences of all the adjacent terms:

d=a_{n+1}-a_n

Replacing terms:

4-7 = -3

The difference between all of the adjacent terms is the same and equal to

d = -3

The first element of the sequence is

a_1=7a_n=a_1+(n+1)d

Therefore, the nth term is computed by

d= -3

a_n=7+\text{ (n-1)}\cdot(-3)

Refine

d= -3 ,

a_n=-3n+10

Now, replacing n=7

a_7=-3\cdot7+10\text{ = -11}

So, the answer is -11.

8 0
1 year ago
Let f(x)=x^2+2x+3 . What is the average rate of change for the quadratic function from x=−2 to x = 5?
miskamm [114]
To find the average rate of change of  given function f(x) on a given interval (a,b):

Find f(b)-f(a), b-a, and then divide your result for f(b)-f(a) by your result for b-a:


f(b) - f(a)
------------
    b-a

Here your function is f(x) = x^2 - 2x + 3.  Substituting b=5 and a=-2,
f(5) = 5^2 -2(5)+3 =?                          and f(-2) = (-2)^2 - 2(-2) + 3 = ?


Calculate           f(5) - [ f(-2) ]
                         ------------------ using your results, above.
                              5 - [-2]

Your answer to this, if done correctly, is the "average rate of change of the function f(x) = x^2+2x+3 on the interval [-2,5]."
5 0
3 years ago
In an effort to determine the most effective way to teach safety principles to a group of employees, four different methods were
musickatia [10]

Answer:

critical value = 5.29

Step-by-step explanation:

Given that they are divided into 4 groups and a sample of 5 test was selected

N = 5 * 4 = 20

k = 4

∝ = 0.01

Df for numerator ( SS group )= k - 1 = 3

Df for denominator ( SSE group )  = N - k = 20 - 4 = 16

DF ( degree of freedom )

Next we will use the F table to determine the critical value

Critical value =   F_{16,3,0.01} = 5.29

5 0
3 years ago
Which choices are equivalent to the quotient below? Check All That Apply.
marshall27 [118]

Answer:

A, E

Step-by-step explanation:

brainliest please

4 0
3 years ago
Read 2 more answers
4-7x=1-6x <br><br> Please explain why the answer is the answer and I’ll give brainlist
Mrac [35]

Answer:

3

Step-by-step explanation:

5 0
3 years ago
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