MATHEMATICS HIGH SCHOOL

Which of the following is the explicit formulas for the geometric sequence?A. an= 9(1/3)n+1
B. an= 9(3)n-1
C. an= 9(1/3)n-1
D. an= 9(3)n+1
which of the following is the explicit formulas for the - 1

Answers

Answer 1
Answer:

Answer:

  C.  an= 9(1/3)n-1

Step-by-step explanation:

The decreasing curve means the base of the exponential factor is less than 1, eliminating choices B and D. The value of the term is 9 at n=1, so eliminating choice A.

The general form of the n-th term is ...

  an = a1·r^(n-1) . . . . first term a1, common ratio r

so we expect to see an exponent of (n-1) when a1 is the value for n=1. If you match the pattern above to the answer choices, you see the only decision required is whether r=3 or r=1/3. The decaying curve of the graph shows you that r < 1, so the choice is r=1/3 and the formula is ...

  an = 9(1/3)^(n-1) . . . . . . . parentheses are needed on the exponent

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Answers

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Step-by-step explanation:

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Answers

the answer is a=bc i know I'm correct 
just multiply both sides by b

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then divide both sides by c
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so b = a/c

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Answers

Answer:

Step-by-step explanation:

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Step-by-step explanation:

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*15 points* any help would be appreciated

Answers

Answer:

1

3

4

7

Step-by-step explanation:

this is what i think it might not be right but i tried my best ;3

can i please have brainly

Answer:

1, 4, 6 those are correct

Step-by-step explanation:

Solve for x 6(x-1)=9(x+2)

Answers

Simplifying 6(x + -1) = 9(x + 2) Reorder the terms: 6(-1 + x) = 9(x + 2) (-1 * 6 + x * 6) = 9(x + 2) (-6 + 6x) = 9(x + 2) Reorder the terms: -6 + 6x = 9(2 + x) -6 + 6x = (2 * 9 + x * 9) -6 + 6x = (18 + 9x) Solving -6 + 6x = 18 + 9x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9x' to each side of the equation. -6 + 6x + -9x = 18 + 9x + -9x Combine like terms: 6x + -9x = -3x -6 + -3x = 18 + 9x + -9x Combine like terms: 9x + -9x = 0 -6 + -3x = 18 + 0 -6 + -3x = 18 Add '6' to each side of the equation. -6 + 6 + -3x = 18 + 6 Combine like terms: -6 + 6 = 0 0 + -3x = 18 + 6 -3x = 18 + 6 Combine like terms: 18 + 6 = 24 -3x = 24 Divide each side by '-3'. x = -8 Simplifying x = -8
6(x-1)=9(x+2)
6x-6=9x+18
6x=9x+24
-3x=24
-x=8
x=-8
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