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Anastasy [175]
2 years ago
10

Find the 12th term of the geometric sequence 5,–25, 125, ...

Mathematics
1 answer:
12345 [234]2 years ago
6 0

Answer:

244140625

5¹²

it is a sequence of numbers in which each term is obtained by multiplying the preceding term by a constant. In other words, the ratio between a term and its preceding term is constant. And that constant is common ratio. Therefore, 12th term is 244140625.

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NEED HELP PLEASE!!!!!!!!!!!!
belka [17]

Answer:

The answer is B. hope this helps

4 0
3 years ago
Consider the system of equations.
jok3333 [9.3K]

Given:

The system of equations:

x-3y=9

\dfrac{1}{5}x-2y=-1

To find:

The number that can be multiplied by the second equation to eliminate the x-variable when the equations are added together.

Solution:

We have,

x-3y=9                        ...(i)

\dfrac{1}{5}x-2y=-1       ...(ii)

The coefficient of x in (i) and (ii) are 1 and \dfrac{1}{5} respectively.

To eliminate the variable x by adding the equations, we need the coefficients of x as the additive inverse of each other, i.e, a and -a So, a+(-a)=0.

It means, we have to convert \dfrac{1}{5} into -1. It is possible if we multiply the equation (ii) by -5.

On multiplying equation (ii) by -5, we get

-x+10y=5       ...(iii)

On adding (i) and (iii), we get

7y=14

Here, x is eliminated.

Therefore, the number -5 can be multiplied by the second equation to eliminate the x-variable.

6 0
3 years ago
Mrs. Lazo bought 91/8 m of curtain cloth. She used 3 5/6 m to make a
babunello [35]
She did not use 181/24 or 7 13/24 meters of cloth
4 0
3 years ago
What is the area of a triangle if the top is 3 the left side is 6 and the right side is 6.7
castortr0y [4]

the answer is 120.6 I'm pretty sure

3 0
3 years ago
Read 2 more answers
5 years ago, my grandfather was five times as old as I was. Three years from now, my grandfather will be three times as old as I
balu736 [363]
<h3>Answer:</h3>

13 years old

<h3>Explanation:</h3>

Let g and m represent grandfather's age now and my age now. The relation 5 years ago was ...

... g -5 = 5(m -5)

The relation in 3 years will be ...

... g +3 = 3(m +3)

Subtracting the first equation from the second, we get ...

... 8 = -2m +34

... 2m = 26 . . . . . add 2m-8

... m = 13

My age now is 13.

4 0
3 years ago
Read 2 more answers
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