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o-na [289]
3 years ago
13

What is the common ratio of 9, 81, 729. -6561

Mathematics
1 answer:
Gekata [30.6K]3 years ago
6 0

Given:

Consider the given sequence is 9, 81, 729, 6561.

To find:

The common ratio.

Solution:

We have,

9, 81, 729, 6561

Here,

First term = 9

Second term = 81

Divide the second term by first term to get the common ratio.

r=\dfrac{81}{9}

r=9

Similarly,

\dfrac{81}{9}=\dfrac{729}{81}=\dfrac{6561}{729}=9=r

Therefore, the common ratio is 9.

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Nataly [62]
You can use the pythagoras’ theorem and just look at one right triangle.
The dimensions for one of the right triangles is (x/2), 8, and square root of 80.

a^2 + b^c = c^2
when c is the square root of 80.

Plug everything in
(x/2)^2 + 8^2 = (square root of 80)^2

That is equivalent to
((x^2)/4) + 64 = 80

Solve for x
((x^2)/4) = 16

Multiple by 4 on each side
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x = 8
3 0
3 years ago
What is the difference of the fractions below? 7x/5-x/5
ycow [4]

Answer:

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= \frac{7x-x}{5}

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3 0
3 years ago
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klasskru [66]

Answer:

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One fourth of 24 is 6.

7 0
3 years ago
There are 1,400 students in a school. A random sample of 50 students contains 7 students with birthdays in March. Based on the d
creativ13 [48]

Answer: 196 students should have birthdays in March

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Hope this helped have a great day/night!!!

5 0
3 years ago
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