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
natima [27]
2 years ago
15

The 5th term in a geometric sequence is 120. The 7th term is 30. What are the possible values of the 6th term of the sequence.

Mathematics
1 answer:
klemol [59]2 years ago
3 0

Answer:

± 60

Step-by-step explanation:

aₙ = a₁ * rⁿ⁻¹

a₇ = 30 = a₁ * r⁷⁻¹ = a₁ * r⁶     (1)

a₅ = 120 = a₁ * r⁵⁻¹ = a₁ * r⁴     (2)

(1)/(2): 30/120 = 1/4 = r²

r = ± 1/2   or ± 0.5

a₁ = a₇/r⁶ = 30/0.5⁶ = 1920

a₆ = 1920 * (± 1/2)⁶⁻¹ = 1920 * ± 1/32 = ± 60

You might be interested in
IM DIEING PLEASE HELP ME FOR BRAINLIEST
Helga [31]

Answer:

B

Step-by-step explanation:

y= 9,800 x 2 ^x = 1,254,400

Just substitute x for 7

y= 9800 x 2 ^7 = 1,254,400

8 0
3 years ago
Find the sample standard deviation with the data 0.62, 1.05, 0.58, 1.17, 1.04, 1.37, 1.32, 0.67, 1.25 1.38, 0.86
sukhopar [10]

standard \: deviation \:  = \sqrt{ \frac{12.5485}{11} }  - (1.028) {}^{2}  \\  = 0.28981
4 0
3 years ago
what is consecutive whole numbers? I have to write an algebraic expression for the sum of three consecutive whole numbers... :(
Agata [3.3K]

Answer:

Consecutive whole numbers (or integers) are numbers that directly follow one another.

Eg: 1, 2, 3, 4, 5 are consecutive whole numbers.

Step-by-step explanation:

Three consecutive even integers can be represented by x, x+2, x+4. The sum is 3x+6, which is equal to 108.

or

let the three consecutive whole numbers is x, x+1,and x+2

x + x+1 + x+2 = 4+2(x+1)

3x+3=4+2x+2

3x-2x=6-3

x=3

the other two numbers are 3+1=4,and 3+2=5

so the three numbers are 3,4 and 5

7 0
3 years ago
Fins the product of 5/12 And 3/8​
Kamila [148]

Answer:

Step-by-step explanation:

( 5/12) × (3/8​) =(5×3)/(12×8) = 5/32

4 0
3 years ago
I need an equation for this
erastovalidia [21]
37 + x = 2(14 + x)

Explanation: 

37 + x = 2(14 + x)
37 + x = 28 + 2x
subtract both sides by 28
9 + x = 2x
subtract both sides by x
9 = x
6 0
2 years ago
Other questions:
  • ANSWER ASAP Find the value of x. A. sqrt 3 B. 3 sqrt 2/2 C. 3 sqrt 2 D. 3 sqrt 3
    6·1 answer
  • Dalena has 6.50 liters of cola to bring to the party. Glenn has 3.75 liters of root beer. If Glenn wants to bring the same
    5·1 answer
  • 35 points | Hi, could I have some help? :)
    12·1 answer
  • 3 trips in 14 months
    14·2 answers
  • A point A is graphed at (0, 5). Complete the coordinates of a shape that can be rotated about the y-axis to create a cone. Provi
    5·1 answer
  • A marble is drawn from a bag containing 3 red marbles and 2 blue marbles and a number cube with faces numbered 1 through 6 is to
    11·1 answer
  • Can someone please help I can’t figure this out :(
    15·1 answer
  • Solve for x: 3(x + 1) − 5 = 3x − 2
    9·1 answer
  • Which ordered pair is a solution of the inequality
    12·1 answer
  • Marissa is painting her rectangular patio, with the exception of a bench that does not need to be painted:
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!