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MaRussiya [10]
3 years ago
7

Write an explicit formula for an, the nth term of the sequence 15, 7,-1,...​

Mathematics
1 answer:
Greeley [361]3 years ago
6 0

Answer:

aₙ = a₁ - 8 x (n-1)

Step-by-step explanation:

a₁ = 15

a₂ = 7 = a₁ - 8 x 1

a₃ = -1 = a₁ - 8 x 2

........

aₙ = a₁ - 8 x (n-1)

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-4 + 4d + 17 = 33<br> D = ?
cricket20 [7]

Answer:

3?

Step-by-step explanation:

I think it is 3, because...

33 - 17 = 16

16 - 4 = 12

12/4 = 3

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7 0
3 years ago
What are three equivalent Decimal forms for the number 19
docker41 [41]

Answer:

The numbers; 19.0 , 19.00 and 19.000 are same value as the number 19

Step-by-step explanation:

Here in this question, we simply want to write decimals which would have same value as the number 19 when written.

Let’s start with 19.0

This is absolutely same value as the number 19

Furthermore let’s write 19.00

This is also same value as the number 19

Lastly;

19.000

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5 0
3 years ago
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Pavlova-9 [17]

Answer:

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Step-by-step explanation:

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Area of the circle = (6)^2 pi = 36 pi

Area of the smaller sector = 1/2 × (6)^2 × theta....,where theta has to be in radians

30° = pi/6

Area of the smaller sector = 1/2 × 36 × pi/6

= 3 pi

Area of the larger sector = 36 pi - 3 pi

Area = 33 pi

3 0
3 years ago
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eduard
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7 0
3 years ago
What is the Radius of a circle with an area of 115
GuDViN [60]

6.05

Step-by-step explanation:

r=squareroot a/π= square root 115/π = 6.05

5 0
3 years ago
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