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
Makovka662 [10]
3 years ago
7

if u can answer all them correctly ill make a post for u and u can have all my coins just pls answer them all im begging

Mathematics
1 answer:
Shkiper50 [21]3 years ago
7 0

Answer: this is a continuation starting in number 4 (use the same steps as example 3)

Step-by-step explanation:

-12

45

-12

14

32

-2

5

You might be interested in
I need to find the limit
Roman55 [17]

Answer:

the answer is 1/-4

Step-by-step explanation:

3 0
3 years ago
The geometric sequence a i a i ​ a, start subscript, i, end subscript is defined by the formula: a 1 = 8 a 1 ​ =8a, start subscr
frozen [14]

Question:

The geometric sequence ai is defined by the formula: a₁ = 8, aᵢ = aᵢ₋₁(-1.5 ).

Find the sum of the first 20 terms in the sequence. Choose 1 answer:

Answer:

The sun of 20 terms of the progress is -10,637.621536256

Step-by-step explanation:

Given

Geometric Sequence

a₁ = 8

aᵢ = aᵢ₋₁(-1.5 )

First, the common ratio needs to be calculated.

The common ratio is the ratio of a term to its previous term.

In other words,

Ratio = 2nd term ÷ 1st term or 3rd term ÷ 2nd term, ...... Etc.

We can calculate the common ratio from aᵢ = aᵢ₋₁(-1.5 ) by dividing both sides by aᵢ₋₁. This gives

aᵢ / aᵢ₋₁ = aᵢ₋₁(-1.5 ) / aᵢ₋₁

aᵢ / aᵢ₋₁ = -1.5

So, the common ratio, r = -1.5

Now that we've had the common ratio and first term to be -1.5 and 8 respectively, the sum of 20 terms can then be calculated using the sum of n terms formula.

Sₙ = a(1 - rⁿ)/(1 - r)

We're making use of this formula because r is less than 1

Where n = 20

a = first term = 8

r = -1.5

By substituting these values; we get

S₂₀ = 8(1 - (-1.5)²⁰)/(1 - (-1.5))

S₂₀ = 8(1 - (-1.5)²⁰)/(1 + 1.5))

S₂₀ = 8(1 - (-1.5)²⁰)/(1 + 1.5))

S₂₀ = 8(1 - (3325.25673008

))/(2.5)

S₂₀ = 8(1 - 3325.25673008

)/(2.5)

S₂₀ = 8(-3324.25673008

)/(2.5)

S₂₀ = -10,637.621536256

5 0
3 years ago
Can someone please answer this question please answer it correctly and please show work please help me I need it
WINSTONCH [101]

Answer:

A

Step-by-step explanation:

-19-11 = -19 + (-11)

3 0
3 years ago
Read 2 more answers
I don't know how to do things like this :(​
Fofino [41]

Answer:

Step-by-step explanation:

i think its a

3 0
3 years ago
Read 2 more answers
Determine whether the figure has point symmetry, line symmetry, both or neither
telo118 [61]

Answer:

Line symmetry

Step-by-step explanation:

If you drew a straight line across the figure horizontally, you would see that both halves are symmetrical.

7 0
3 years ago
Other questions:
  • The length of a rectangle is four feet less than twice width. The area of the rectangle is 70 square feet. Find the dimensions o
    11·1 answer
  • HELP ME HELP ME HELP ME
    10·1 answer
  • Pyramid A is a square pyramid with a base side length of 12 inches and a height of 8 inches. Pyramid B has a volume of 20,736 in
    8·2 answers
  • Two of the sides of a right triangle are 8 and 6 units long. How long is the third side? Find all possible answers. Natural leng
    12·1 answer
  • Need help with this question, much appreciated.
    10·1 answer
  • In the formula, l = a + (n - 1)d make d as the subject. Find d when l = 10, a = 2, n = 5.
    9·1 answer
  • Can someone please help me
    12·1 answer
  • When 4 is added to five times a number the sum is 34. Find the number. *
    8·1 answer
  • Mariah’s parents got into a car accident. They took their car to the
    6·1 answer
  • Tommy waves 45 kg Jamil Woods 53 kg what is the combined weight of the two boys in grams?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!