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
xeze [42]
3 years ago
7

PLEASE HELP!!! Calculate S12 for the geometric series 4 + 10 + 25 + ...

Mathematics
2 answers:
bezimeni [28]3 years ago
8 0

Answer:

A. 158,943.053

Step-by-step explanation:

notsponge [240]3 years ago
4 0

Answer: sum of the first 12 terms is

158944

Step-by-step explanation:

In a geometric series, successive terms differ by a common ratio. The formula for the sum of n terms, Sn in a geometric sequence is expressed as

Sn = a(r^n - 1)/(r - 1)

Where

a represents the first term of the sequence.

r represents the common ratio.

n represents the number of the terms in the sequence.

From the information given, we want to determine S12, so

n = 12

a = 4

r = 10/4 = 25/10 = 2.5

S12 = 4(2.5^12 - 1)/(2.5 - 1)

S12 = 4(59605 - 1)/1.5

S12 = (4×59604)/1.5

S12 =238416/1.5 = 158944

You might be interested in
There are 8 dinner rolls in a package.
masha68 [24]

Answer: 25 packages

Step-by-step explanation: 100x2=200 / 200/8=25

5 0
3 years ago
Read 2 more answers
How do you write 0.61 as a percentage? (Just a random question.......) XD<br> ~Eri
max2010maxim [7]

Answer:

61%

Step-by-step explanation:

in order to convert decimals to percentages, you just multiply by 100.

.61 * 100 = 61%

5 0
3 years ago
Read 2 more answers
Which answer is equal to 2sqrt-28?
Oksana_A [137]

2^2-28

=4-28

=-24

that is it

4 0
3 years ago
Jeffrey set up chairs for a meeting.
Kazeer [188]

Answer:

9x + 3 = 7x + 19

Step-by-step explanation:

Given that,

Jeffrey set up chairs for a meeting.

He arranged the chairs in 9 equal  rows but had 3 chairs left over.

Let x be the number of chairs. So,

9x+3 .....(1)

Then he arranged the chairs in 7 equal rows  but had 19 chairs left over. So,

7x+19 ......(2)

From equation (1) and (2),

9x+3 = 7x+19

9x-7x = 19-3

2x = 16

x = 8

Hence, the correct option is (b).

3 0
3 years ago
X= -5 y=2 work out the VALUE if 3x + 4y
Orlov [11]
3(-5) + 4(2)
= -15 + 8
= -7
7 0
3 years ago
Read 2 more answers
Other questions:
  • The supplementary angle of 100.6° is
    9·1 answer
  • Find the coordinates of the midpoint of the segment connecting points (9, 5) and ((–1, –7). In your final answer, include the fo
    10·1 answer
  • Umesh’s total charge for an onsite job is: a fixed charge of $50 per job, plus an hourly charge of $80 per hour. Which one of th
    14·2 answers
  • Please help I need answer quick thank you
    6·2 answers
  • Mary sells fruit with four of her friends. If the earnings are divided evenly, how
    9·1 answer
  • Convert 214 pounds to kilograms. Use 1 kg = 2.2 lb.
    14·2 answers
  • Decide whether the parallelogram is a rhombus ,a rectangle or a square explain
    11·1 answer
  • Come up with a situation in which you would have to calculate the surface area or volume of a solid
    11·1 answer
  • A student has a class with four tests, each worth 100 points, and has earned these
    14·1 answer
  • How many ninths are in 5 wholes??? <br>Answer correct, please do quickly!!!<br>TY:)​
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!