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allsm [11]
3 years ago
8

Consider the geometric sequence 4, 40, 400, 4000, ...

Mathematics
1 answer:
Rom4ik [11]3 years ago
7 0

Answer:

a(n) = 4*10(n - 1)

Step-by-step explanation:

Each term of the given sequence is 10 times greater than the previous term.

The first term of this sequence is 4.

Thus, the explicit formula desired is:

a(n) = 4*10(n - 1).

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Solve each system by elimination.
strojnjashka [21]

Answer:

y = -1, x = -2

Step-by-step explanation:

First, multiply the top equation by 2 to make 3x become 6x:

6x - 8y = -4

Second, multiply the bottom equation by 3 to make -2x become -6x:

9y - 6x = 3

Add the two equations together, and you get:

y = -1

Plug in y as -1 into the first or second equation:

3x - 4(-1) = -2

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5 0
3 years ago
Find the first term of the following geometric sequence ----,42,126,378,1,134
sergey [27]
Since it is a geometric sequence each term will be a specific multiple of the term preceding it, called the common ratio...

126/42=378/126=1134/378=3

The sequence is a(n)=a(3)^(n-1) and we know the second term is 42 so:

42=a(3)^(2-1)

42=3a

a=14

So the first term is 14.
8 0
3 years ago
What is the answer to 5 x 2 x 2 + 2?
Sedbober [7]
It is 22 cuz 5 * 2 is 10 and 10 * 2 IS 20 + 2=22

7 0
3 years ago
Read 2 more answers
Given the initial inequality −4 (7)<br> c. (−4) = (7)
Katen [24]

Answer:

Step-by-step explanation:

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4

⋅

(

7

−

c

)

4

⋅

(

7

-

c

)

Apply the distributive property.

4

⋅

7

+

4

(

−

c

)

4

⋅

7

+

4

(

-

c

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Multiply.

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Multiply 4

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by

7

7

.

28

+

4

(

−

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28

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-

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1

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1

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4

.

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6 0
2 years ago
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What is six times six?​
Alona [7]

Answer:

36

Step-by-step explanation:

6•6=36

5 0
3 years ago
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