1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nostrana [21]
3 years ago
8

Use geometric mean to find the 7th term in a geometric sequence if the 6th term is 12 and the 8th term is 27

Mathematics
1 answer:
Darya [45]3 years ago
3 0

Answer:

18

Step-by-step explanation:

<em>First, use the equation for geometric mean; an=a1r^n-1</em>

*where is an is the number at an n term, r is the ratio and a1 is the first number of the sequence.*

12 = a1 r^5

27 = a1r^7

From the equations above,

a1 = 128/81

r = 3/2

Therefore, the 7th term is:

an = (128/81) (3/2)^6

an = 18

hope this helps :)

You might be interested in
THERE IS MORE THAN ONE :(
ch4aika [34]

Answer:

Wait a sec

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
HELP with these questions
zlopas [31]

<u>Step-by-step explanation:</u>

transform the parent graph of f(x) = ln x        into f(x) = - ln (x - 4)  by shifting the parent graph 4 units to the right and reflecting over the x-axis

(???, 0): 0 = - ln (x - 4)

            \frac{0}{-1} = \frac{-ln (x - 4)}{-1}

            0 = ln (x - 4)

            e^{0} = e^{ln (x - 4)}

             1 = x - 4

          <u> +4 </u>  <u>    +4 </u>

             5 = x

(5, 0)

(???, 1): 1 = - ln (x - 4)

            \frac{0}{-1} = \frac{-ln (x - 4)}{-1}

            1 = ln (x - 4)

            e^{1} = e^{ln (x - 4)}

             e = x - 4

          <u> +4 </u>   <u>    +4 </u>

         e + 4 = x

          6.72 = x

(6.72, 1)

Domain: x - 4 > 0

                <u>  +4 </u>  <u>+4  </u>

               x       > 4

(4, ∞)

Vertical asymptotes: there are no vertical asymptotes for the parent function and the transformation did not alter that

No vertical asymptotes

*************************************************************************

transform the parent graph of f(x) = 3ˣ        into f(x) = - 3ˣ⁺⁵  by shifting the parent graph 5 units to the left and reflecting over the x-axis

Domain: there is no restriction on x so domain is all real number

(-∞, ∞)

Range: there is a horizontal asymptote for the parent graph of y = 0 with range of y > 0.  the transformation is a reflection over the x-axis so the horizontal asymptote is the same (y = 0) but the range changed to y < 0.

(-∞, 0)

Y-intercept is when x = 0:

f(x) = - 3ˣ⁺⁵

      = - 3⁰⁺⁵

      = - 3⁵

      = -243

Horizontal Asymptote: y = 0  <em>(explanation above)</em>

5 0
4 years ago
Ata Sets
Fynjy0 [20]

Describe the data:

Mean=12

Interquartile range=7

Range=17

Do Not describe:

Range-23

Median=10

Interquartile range=12

6 0
2 years ago
Given that E is the universal set and that A and B are subsets of E. simplify An(B-A)​
julsineya [31]

Answer:

Answer a h bro ok bye bro good luck

5 0
3 years ago
PLEASE HELPAmaya is using 36 carpet squares to cover the floor of her closet. If
Nostrana [21]

Answer:

27 blue squares

Step-by-step explanation:

36÷4=9. 9×3=27

3 0
3 years ago
Other questions:
  • The output of a function in 7 more than 3 times the input. find the input when the output is -8
    7·1 answer
  • Please help ASAP! I will mark Brainliest! Please answer CORRECTLY! No guessing! CHECK ALL THAT APPLY
    15·2 answers
  • Gragh each of the following linear functions f(x)=5+2x
    13·1 answer
  • 16cm/min equals how many meters in one hour
    10·1 answer
  • Ravi is on the swim team. Each week he swims a total of 9,000 meters. How many kilometers does he swim each week? Be sure to inc
    8·2 answers
  • Find the area of the shape shown below.
    14·2 answers
  • To which subset of the real numbers does -18 belongs ( irrational, rational, integer, natural, real numbers, whole)
    14·1 answer
  • Multiplication: 2x12=__________
    14·2 answers
  • Given that x = y - 2 / y -3 Express y in terms of x ​
    5·1 answer
  • HELP PLEASE! (will be marking brainliest) What is the measure of FJG?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!