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2 years ago

29 points Which of these steps will eliminate a variable in this system?

Mathematics

1 answer:

ch4aika [34]2 years ago

7 0

Answer:

the answer is c

Step-by-step explanation:

good luck <3

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HELP!Please solve! this!!

Angelina_Jolie [31]

Answer:

Recursive formula for geometric sequence

$a_{n}=a_{n-1}\times r$

is $a_{n}=a_{n-1}\times 6$

and explicit formula for geometric sequence $a_{n}=a_{1}^{r-1}$ is

$a_{n}=(\frac{1}{2})^{6-1}$

Step-by-step explanation:

Given sequence is $\frac{1}{2},3,18,108,648,...$

To find the recursive and explicit formula for this sequence:

Let $a_{1}=\frac{1}{2},a_{2}=3,a_{3}=18,a_{4}=108,a_{5}=648,...$

To find the common ratio r:

$r=\frac{a_{2}}{a_{1}}$

$=\frac{3}{\frac{1}{2}}$

$=3\times 2$

$=6$

Therefore r=6

$r=\frac{a_{3}}{a_{2}}$

$=\frac{18}{3}$

$=6$

Therefore r=6

Therefore the common ration r=6

Therefore the given sequence is geometric sequence

Recursive formula for geometric sequence is $a_{n}=a_{n-1}\times r$

$a_{n}=a_{n-1}\times 6$

and explicit formula is $a_{n}=a_{1}^{r-1}$

$a_{n}=(\frac{1}{2})^{6-1}$

$=(\frac{1}{2})^{5}$

$=\frac{1}{32}$

Therefore $a_{n}=\frac{1}{32}$

8 0

3 years ago

Read 2 more answers

6.7 is 10% of what number

Monica [59]

Answer:

the answer is 67

Step-by-step explanation:

hope it's helpful

7 0

3 years ago

Read 2 more answers

What is 2 + 2 + 3 x 4 - 1 x 10 - 6. First on the answer gets brainlist;)

Mrrafil [7]

Answer: 19

Step-by-step explanation:

3 0

3 years ago

+ 9 y Find x when y = 6 and R = 7

rodikova [14]

Answer:

15 2/3

Step-by-step explanation:

R = 3x + 9y

7 = 3x + 9(6)

7 = 3x + 54

-47 = 3x

x = -15.6

5 0

3 years ago

1/3 x 1/2 in a fraction

il63 [147K]

Answer:

16666666666/100000000000.

Step-by-step explanation:

5 0

4 years ago