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
krek1111 [17]
3 years ago
9

What is the sum of the geometric sequence -4,24,-144, ... if there are 7 terms?

Mathematics
1 answer:
const2013 [10]3 years ago
4 0
S_7=-4+24-144+864-5184+31104-186624
S_7=-4(1-6+36-216+1296-7776+46656)
(-6)S_7=-4(-6+36-216+1296-7776+46656-279936)
S_7-(-6)S_7=-4(1+279936)
S_7=-\dfrac47\times279937=-159964
You might be interested in
a contractor needs to cut a piece of glass to fit a square window. the area of the window is 16 ft^2. find the length of the sid
Katyanochek1 [597]

Area = 16 ft.²

Use the square root process:

√16

√(4 * 4)

2√4 = 4

8 0
3 years ago
Read 2 more answers
What would be the rate of change and the initial value
seraphim [82]
Rate of change = 2/1 and the initial value is -2. this can be expressed as y=2x-2. 
4 0
3 years ago
The graph shows quadrilateral FGHI and the location of vertex F' after a dilation with respect to the origin. What are the coord
Deffense [45]
G is at (0, 2). Good luck!
8 0
3 years ago
Read 2 more answers
2. Ingrid Sering sells two types of garden fountains on a straight commission basis. On one fountain that sells for $869, she ge
spin [16.1K]

Answer:

$9,102

Step-by-step explanation:

Ingrid Sering sells two types of garden fountains on a straight commission basis. On one fountain that sells for $869, she gets a commission of $174. On the other fountain that sells for $1,260, she gets $252.During a 3-month selling season, Ingrid sold 19 of the lower-priced fountains and 23 of the higher-priced fountains. What were her total commissions for three months

From the question above, we have the following information:

On one fountain that sells for $869 = she gets a commission of $174( the lower-priced fountains)

On the other fountain that sells for $1,260 = she gets $252 ( the higher-priced fountains)

Ingrid sold 19 of the lower-priced fountains)

1 fountain sold = $174 of commission

19 fountains sold =

$174 × 19

= $3,306

She also sold 23 of the higher-priced fountains)

1 higher priced fountains = $252

23 higher priced fountains =

$252 × 23

= $5,796

Hence, the Total commission Ingrid made = Total commission on Lower priced fountains + Total commission on Higher priced fountains

= $3,306 + $5,796

= $9,102

Therefore, the total commission Ingrid made = $9,102

3 0
3 years ago
Factor k2 - 17k + 16.<br><br> (k - 2)(k - 8)<br> (k - 1)(k + 16)<br> (k - 1)(k - 16)
Deffense [45]
The factorised form of k2 - 17 k + 16

= the third one ...
(k-1)(k-16)

because the two numbers in the brackets, -1 and -16, must add to give the middle number of the quadratic, -17, and must multiply to give the integer on the right, 16,

3 0
3 years ago
Read 2 more answers
Other questions:
  • During a football game, a team lost 12 yards on the first play and then gained 5 yards on each of the next 3 plays. Which method
    8·2 answers
  • Solve and Graph 5x-3y=-3
    6·2 answers
  • *18 POINTS*<br> Urgent!! Please answer
    10·2 answers
  • If you recieved a score of 80% on an assignment, what is the ratio of correct answers to incorrect anwers?
    7·1 answer
  • You organize a garage sale. You have $30 at the beginning of the sale. You earn an average of $20 per hour. Write an equation th
    13·1 answer
  • James has eleven apple and he subtracts and divide how many apples does he have
    12·1 answer
  • I need help with This one
    15·2 answers
  • What is the y-value when x = 8?<br> 14<br> 12<br> 10<br> 8<br> 2.<br> 0 2 4 6 8 10 12 14<br> 2 6
    7·1 answer
  • Help on this math question. 25 points.
    11·2 answers
  • The slope and y intercept
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!