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ahrayia [7]
3 years ago
12

The first term of a geometric sequence is -10 and the common ratio is 4 what is the fifth term of the sequence

Mathematics
1 answer:
forsale [732]3 years ago
7 0

Answer:

a(5) = -2560

Step-by-step explanation:

The general form of the equation of a geometric series is

a(n) = a(1)*(r)^(n-1),

where a(1) is the first term, r is the common ratio.

Here, a(1) = -10 and r = 4, so

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

The fifth term of this sequence is a(5) = -10(4)^(5-1), or

a(5) = -10(4)^(4), or a(5) = -10(4)^4 = -2560

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What is 4y - 9x + 3y - 2x when simplified?
pychu [463]

Answer:

A. -11x + 7y

Step-by-step explanation:

4y - 9x + 3y - 2x

4y + 3y = 7y

-9x - 2x = -11x

-11x + 7y

I hope this helps!

3 0
2 years ago
What is a common ratio
Umnica [9.8K]

A definition of a  common ration Is the number multiplied must be the same for each term in the sequence. The common ratio is the amount between each number in a geometric sequence. To determine the common ration you can just divide each number from the number preceding it in the sequence. Here is an example I found of a common ration to further help you

2,4,8,16

16/8=2 you would then continue to divide to ensure that the pattern is the same for each number

8/4=2

4/2=2 the ratio is the same for each one so the common ration would be 2 I hope this helps could I please get a brainliest :)


5 0
3 years ago
There are 15 pens and 10 pencils in a box. One object is selected at random and then replaced. Another is the selected. Find the
almond37 [142]

Step-by-step explanation:

1. P(pen then pencil) = 15/25 × 10/25 = 3/5 × 2/5 = 6/25

2. P(pen then pencil) + P(pencil then pen) = 6/25 + 6/25 = 12/25

3. P(pencil then pencil) = 10/25 × 10/25 = 2/5 × 2/5 = 4/25

4. P(at least 1 pen) = 1 − P(no pen) = 1 − 4/25 = 21/25

6 0
4 years ago
The point (-3,-1) lies in the quadrant: A.​
xenn [34]

Answer:

\displaystyle QUADRANT\:III

Step-by-step explanation:

\displaystyle [POSITIVE, NEGATIVE] → QUADRANT\:IIII \\ [NEGATIVE, NEGATIVE] → QUADRANT\:III \\ [NEGATIVE, POSITIVE] → QUADRANT\:II \\ [POSITIVE, POSITIVE] → QUADRANT\:I

I am joyous to assist you at any time.

3 0
3 years ago
why does the multiplication property of equality not allow us to divide both sides of an equation by zero​
AlladinOne [14]
I’m not sure you can look this up
5 0
4 years ago
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