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
barxatty [35]
2 years ago
13

Find the sum of an 8-term geometric sequence when the first term is 7 and the last term is 114,688 and select the correct answer

below.
Mathematics
2 answers:
Leya [2.2K]2 years ago
7 0
It is multiplied by 4 each time.
VARVARA [1.3K]2 years ago
3 0
First term a1 = 7
8th term a1*r^7 = 114688

so r^7  =   114688/7 = 16384

r = 16384 ^ (1/7)  = 4

S8  = a1 * (r^n - 1 )/ (r - 1)   = 7 * (4^8 - 1) /  3  =   152,915  answer
You might be interested in
Pls help will give brainliest to the right answer :)
morpeh [17]

Answer:

62

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
With bases V1, V2 , V3 andw1, w2 , W3, suppose T(v1) = w2 and T(v2) = T(v3) = w1 + w3 . T is a linear transformation. Find the m
Roman55 [17]

Answer:

See picture and explanation below.

Step-by-step explanation:

With this information, the matrix A that you can find is the transformation matrix of T. The matrix A is useful because T(x)=Av for all v in the domain of T.

A is defined as T=([T(v_1)] [T(v_2] [T(v_3)])\text{ where }[T(v_i)] denotes the vector of coordinates of T(v_i) respect to the basis (we can apply this definition because forms a basis for the domain of T).

The vector of coordinates can be computed in the following way: if T(v_i)=a_1w_1+a_2w_2+a_3w_3 then [T(v_i)]=(a_1,a_2,a_3)^t.

Note that we have all the required information: T(v_1)=0w_1+1\cdot w_2+0w_3 then [T(v_1)]=(0,1,0)^t

T(v_2)=T(v_3)=1\cdot w_1+0w_2+0w_3 hence [T(v_2)]=[T(v_3)]=(1,0,0)^t

The matrix A is on the picture attached, with the multiplication A(1,1,1).

Finally, to obtain the output required at the end, use the properties of a linear transformation and the outputs given:

T(v_1+v_2+v_3)=T(v_1)+T(v_2)+T(v_3)=w_2+w_1+w_1=w_2+2w_1  

In this last case, we can either use the linearity of T or multiply by A.

4 0
3 years ago
What's the expanded form to write 16,107,320
Romashka [77]
(10,000,000) + (6,000,000) + (100,000) + (7,000) + (300) + (20)
6 0
2 years ago
Does anyone know this lol i just need a short explanation
maks197457 [2]

Answer: pretty sure it’s because the left and bottom sides add up to equal the top side

Step-by-step explanation:

4 0
2 years ago
PLEASE HELP ME!
Westkost [7]

Answer:

75.09%

Step-by-step explanation:

1st week: 1060

2nd week: 950

3rd week: 1090

4th week: 795

Percent decrease from first to fourth week is 75.09%

Hope this helps!

Plz Mark Brainliest!

5 0
3 years ago
Other questions:
  • DO NOT POST UNUSEFUL ANSWERS! Serious answers only! A softball has a circumference of 12 inches. What is the softballs approxima
    15·2 answers
  • <img src="https://tex.z-dn.net/?f=5%20%5Ctimes%20%5Cfrac%7B4%7D%7B7%7D%20" id="TexFormula1" title="5 \times \frac{4}{7} " alt="5
    8·2 answers
  • Solve the literal equation for y; cy 3=6d-2y
    10·1 answer
  • Freddie gets paid £1500 per month he spends 20% on rent the rest is spent on food, travel and socialising in the ratio 2:3:1 res
    13·1 answer
  • The sales of lawn mowers t years after a particular model is introduced is given by the function y = 5500 ln (9t + 4), where y i
    12·2 answers
  • en el octagono regular siguiente cuyo lado mide 2 cm. se han trazado arcos de circunferencia de radio 1 en cada uno de los ángul
    10·1 answer
  • RESOLVER POR TRIGONOMETRIC RATIOS
    12·2 answers
  • Which of the following are not linear functions? Place a check mark in the box next to each equation that is not a linear functi
    7·1 answer
  • if cathy myra and eva all take 2.0 h to walk from their house to their school at a rate of 1.0 m/s how far is their school from
    6·1 answer
  • Please help with 6 and 7
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!