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
Zielflug [23.3K]
3 years ago
12

4. Evaluate the geometric series given a1 = 4, r = -2 and n = 12

Mathematics
1 answer:
katrin2010 [14]3 years ago
3 0

we know that

a1=7

r=2

n=14

then

Sn=a1*[(r^n)-1]/(r-1)-------------->S14= 7*[(2^14)-1]/(2-1)=114681

the answer is 114681

You might be interested in
If x^2+2=3^2/3+3^-2/3 then prove that 3x^3+9x-8=0​
gregori [183]

Answer:

See below.

Step-by-step explanation:

x^2 + 2 = 3^2/3 + 3^-2/3

x^2 = 3^2/3 + 3^-2/3  - 2

x =  √(3^2/3 + 3^-2/3  - 2)

x = 0.748888296

Substitute for x  in  3x^3 + 9x - 8:

3( 0.748888296)^3 + 9( 0.748888296) - 8 = 0.

So it is proved.

6 0
3 years ago
Read 2 more answers
Tisha saves $37 in September. She saved 34 in October and 24$ in November. Then Tisha spent 63$ on a a video game. How much mone
FinnZ [79.3K]
Tisha has $32 left out of $95
3 0
3 years ago
4<br>Fill in the blanks to complete the following number patterns.<br>13, 18,___, 31, 39, 49​
ella [17]

Answer:

So you first count how much times the numbers go up,then you add the number you get it is 6+ you add them with 13 and you get 19.

Step-by-step explanation:

So you first count how much times the numbers go up,then you add the numbers so 1 is not enough 2 is not enough 3 is not enough 4 is not enough 5 is not enough 6 is enough, so we add the six with the number that we are adding which is 13,then you get 19

7 0
3 years ago
5 1/5 divided by -13/15
zepelin [54]
Look up this site called calculator soup it gives great answers
5 0
3 years ago
Read 2 more answers
Can someone please help? i’ll make you a brainliest.
Darya [45]

Answer:

b

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • How many different committees can be formed from 7 teachers and 46 students if the committee consists of 3 teachers and 2 studen
    10·1 answer
  • What is 100×23+34-97=___-34+23
    12·1 answer
  • Felicia makes \frac{1}{2}
    13·1 answer
  • Find the coordinates of Rif M(-4, 5) is the midpoint<br> of RS and S has coordinates (0, -10).
    10·1 answer
  • Surface area of a 4m and 4m and 4m cube
    9·2 answers
  • The point (8, –15) is on the terminal side of an angle θ. What is sin θ ?
    8·1 answer
  • 5
    8·1 answer
  • Solve the equation<br> 3x-2<br> 4<br> -<br> 2x - 5- 1 + x<br> 3 6
    9·1 answer
  • A sample of size 50 will be drawn from a population with mean 73 and standard deviation 8. Find the 19th percentile of the sampl
    15·1 answer
  • 8) In square HOPE, mH = 5x. Find the value of x.<br>A. 10<br>B. 18<br>C. 70<br>D. 15
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!