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Archy [21]
2 years ago
9

What must be true in order to find a sum for an infinite geometric series?

Mathematics
2 answers:
Harlamova29_29 [7]2 years ago
8 0

The law is

Common ratio or r must lies in between 0 and 1

It means

r is in (0,1)

  • r is greater than 0 but less than 1

The formula is

\boxed{\sf S_{\infty}=\dfrac{a}{1-r}}

larisa [96]2 years ago
4 0

Answer:

0 < r < 1

Step-by-step explanation:

That every sequence gets multiplied by a number less than 1 but more than 0

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Let e f (x) = x2 – 2x - 4 What is the average rate of change for the quadratic function from X = -1 tox to x = 42 Enter your ans
sammy [17]

Answer:

The average rate of change of the given function

A(x) =  1

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given function f(x) = x² - 2x -4

And given that x = a = -1 and  x=b = 4

The average rate of change of the given function

A(x) = \frac{f(b)-f(a)}{b-a}

<u><em>Step(ii):-</em></u>

f(x) = x² - 2x -4

f(-1) = (-1)² - 2(-1) -4 = 1+2-4 = -1

f(4) = 4² -2(4) -4 = 16 -12 = 4

The average rate of change of the given function

A(x) = \frac{f(b)-f(a)}{b-a}

A(x) = \frac{4-(-1)}{4-(-1)} = \frac{5}{5} = 1

<u><em>final answer:-</em></u>

The average rate of change of the given function

A(x) =  1

5 0
3 years ago
Read 2 more answers
Find the value of the trigonometric ratio. make sure to simplify the fraction if needed
kati45 [8]

Answer:

Sin A = o/h

= 9/41

Step-by-step explanation:

since Sin is equal to opposite over hypotenuse, from the question, the opposite angle of A is 9 and hypotenuse angle of A is 41. Thus the answer for Sin A= 9/41

6 0
3 years ago
What is the domain of the function represented by this graph?
Fantom [35]
Domain is all the x values represented
domain here is infinitely because it can go on forever to the left and to the right
8 0
3 years ago
Write a number sentence to compare 7.17 and 7.170
yulyashka [42]
Both of these values are the same, so the number sentence would state:

7.17 = 7.170

You can place any number of zeros to the very end on the right side (when there is a decimal point) without changing the value of the number.

7.1700000 = 7.17 also
5 0
4 years ago
Write the number name for 485,002,000
ikadub [295]
Four hundred and eighty five million, two thousand.
6 0
4 years ago
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