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vampirchik [111]
3 years ago
7

Use function notation to write a recursive formula to represent the sequence: 3, 6, 12, … f(n) = f(n − 1) + 3 f(n) = f(n − 1) +

2 f(n) = f(n − 1) ⋅ 3 f(n) = f(n − 1) ⋅ 2
Mathematics
2 answers:
Reika [66]3 years ago
7 0

The answer is D) f(n) = f(n − 1) ⋅ 2

Wittaler [7]3 years ago
6 0

Answer:

f(n) = f(n − 1) ⋅ 2

Step-by-step explanation:

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I might be 560

Step-by-step explanation:

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What are the solutions?<br>8x^2-12x-23=-5​
erastova [34]

Answer:

x = 3/4 + (3 sqrt(5))/4 or x = 3/4 - (3 sqrt(5))/4

Step-by-step explanation:

Solve for x over the real numbers:

8 x^2 - 12 x - 23 = -5

Divide both sides by 8:

x^2 - (3 x)/2 - 23/8 = -5/8

Add 23/8 to both sides:

x^2 - (3 x)/2 = 9/4

Add 9/16 to both sides:

x^2 - (3 x)/2 + 9/16 = 45/16

Write the left hand side as a square:

(x - 3/4)^2 = 45/16

Take the square root of both sides:

x - 3/4 = (3 sqrt(5))/4 or x - 3/4 = -(3 sqrt(5))/4

Add 3/4 to both sides:

x = 3/4 + (3 sqrt(5))/4 or x - 3/4 = -(3 sqrt(5))/4

Add 3/4 to both sides:

Answer:  x = 3/4 + (3 sqrt(5))/4 or x = 3/4 - (3 sqrt(5))/4

4 0
3 years ago
How many solutions is in x + 5 = 0
Natasha_Volkova [10]

Answer:

1 answer which would be -5+5 which =0

Step-by-step explanation:

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How is a coordinate grid a useful way to describe exactly where an object is?
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Answer:

because you can show the exact points an object is at

Step-by-step explanation:

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Hope this helps!

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