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
nekit [7.7K]
3 years ago
11

The fith term of a G.P is 8 times the 2nd term find its common ratio​

Mathematics
2 answers:
Dovator [93]3 years ago
6 0

Answer:

Common ratio r = 2

Step-by-step explanation:

\because the fith term of a G.P is 8 times the 2nd term.

\therefore  \: t_5 = 8\times t_2 \\ \therefore  \: ar^{5-1}=8\times \: ar^{2-1}  \\ \therefore  \: r^{4}=8\times \: r^{1} \\ \therefore  \: r^{3}=8 \\ \therefore  \:r^{3}= {2}^{3}  \\   \hspace{20 pt}\huge \red{ \boxed{\therefore  \:r= {2}}} \\

Hence, common ratio is 2.

GrogVix [38]3 years ago
5 0

Answer:

The common ratio is 2

Step-by-step explanation:

T_n = ar^(n-1)

T_5 = 8(T_2)

r = ?

T_5 = ar^4

T_2 = ar

Therefore

ar^4 = 8ar

Divide both sides by ar, we have

r³ = 8

Taking the cube root of both sides, the result is

r = 2

The common ratio is 2

You might be interested in
Deborah finds that that the theoretical probability of flipping "heads" on a fair coin was 50%. After she flipped the fair coin
nydimaria [60]

Answer: 5% if it’s bubble sheet then 0.05

Step-by-step explanation:

Probability of flipping heads=50%

Probability of flipping practically = 45/100

=45

So 50%-45% = 5%

7 0
3 years ago
Complete these ordered pairs for this equation.<br> (0, ), (-1,), (1, ) y=2x+1<br> Help
N76 [4]

Answer:

(0, 1)

(-1, -1)

(1,3)

Step-by-step explanation:

Given the function;

y = 2x + 1

when x = 0

y = 2(0)+1

y = 1

Hence the required pair is (0, 1)

when x = -1

y = 2(-1) + 1

y = -2 + 1

y = -1

Hence the coordinate is (-1, -1)

when x = 1

y = 2(1) + 1

y = 2 + 1

y =3

Hence the coordinate is (1, 3)

7 0
3 years ago
A right triangle is shown below. What is cos EFD?<br> Will make BRAINLIEST
rjkz [21]
Are you looking for the length from E to F?
8 0
3 years ago
How do you graph? <br> y=−4/3x+8y
trasher [3.6K]

How do we graph anything? Make a table of values for x and y and then plot each point. After plotting each point on the xy-plane, connect each point with a straight line or curve (depending on the function).


In this case, we must first isolate y.


y = (-4/3)x + 8y


y - 8y = (-4/3)x


-7y = (-4/3)x


y = (-4/3)x ÷ (-7)


y = (4/21)x


Now follow the steps above.


8 0
3 years ago
Prime numbers less than 50
SVETLANKA909090 [29]

Answer:

2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,83,89,97

Step-by-step explanation:

those are the prime numbers

3 0
2 years ago
Read 2 more answers
Other questions:
  • Answer and get brainliest
    10·1 answer
  • Ahmed and Tonya are training for a race. Ahmed runs a mile 8 minutes 30 seconds. Tonya runs a mile 7 minutes 45 seconds. How muc
    15·1 answer
  • A rectangle has the width of r+3 and a length of 2r+9. What is the perimeter of the rectangle
    14·2 answers
  • What's the answer to this?
    11·1 answer
  • Can someone help me with this question please?
    14·1 answer
  • 2. Create a linear function that has a rate of change of 3 and a solution at (6, 12).
    15·1 answer
  • Help with my Semester exam here the 5 questions
    10·2 answers
  • Your company has two items of inventory at the end of the accounting period as follows:
    7·1 answer
  • What is the vertical change from Point A to Point B?
    13·2 answers
  • What is the equation of a line that is parallel to -x + 3y = 6 and passes through the
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!