Ask question

Ask question

All categories

Vladimir79 [104]

3 years ago

7

What is the sum of the geometric sequence −4, 24, −144, … if there are 7 terms?-159,964 −26,661 26,661 159,963

1 answer:

Hoochie [10]3 years ago

8 0

The common difference is multiply f(n-1) by -6 and (f)1=-4

mutiply -144 by -6, then 864 by -6, then -5184 by -6. then 31104 by -6 to get -186624

so we have -4, 24, -144, 864, -5184, 31104, -186624 as the seven terms in the geometric sequence, now we just need to add these together and getting the final answer of -159,964

You might be interested in

for two functions, a(x) and b(x), a statement is made that a(x) = b(x) at x=2. what is definitely true about x=2

Musya8 [376]

Answer:

Functions a(x) and b(x) intersect each other at x = 2.

6 0

3 years ago

Read 2 more answers

Can someone please help me?

Tems11 [23]

You are right correct

3 0

3 years ago

What are 3 ways you could use arts and music outside school

dimaraw [331]

Painting a mural
Doing charity work like playing a concert
Design

6 0

3 years ago

Read 2 more answers

Find the slope of the line that contains the<br><br>point (4, −9) and has a y intercept of 2.

ASHA 777 [7]

Answer:

<h2> m = -¹¹/₄</h2>

Step-by-step explanation:

The equation of a line with slope of <em>m</em> and y-intercept of <em>b</em> is: y = mx + b

b = 2 and line contains the point (4, -9), so:

-9 = m×4 + 2 {subtract 2 from both sides}

-11 = 4m {divide booth sides by 4

m = -¹¹/₄

5 0

3 years ago

TV studio has brought in 9 boy kittens and 6 girl kittens for a cat food commercial. The director is going to choose 9 of these

Amanda [17]

Answer:

probability = 0.2517

Step-by-step explanation:

given data

boy kittens = 9

girl kittens = 6

choose kittens at random = 9

solution

total kitten are = 9 + 6 = 15

first we get here total no of probability that is

n(s) = 15 C 9

n(s) = $\frac{15!}{9!(15-9)!}$

n(s) =5005

and

total way to chose 5 boy kittens is = 9 C 3

n(3) = $\frac{9!}{3!(9-3)!}$

n(3) = 84

and

total way to chose 4 girl kittens is = 6 C 4

n(4) = $\frac{6!}{4!(6-4)!}$

n(4) = 15

so

total way to chose 5 boy kittens and 4 girl kittens is

total way = 84 ×15 = 1260

so probability that the director chooses 5 boy kittens and 4 girl kittens is

probability = $\frac{1260}{5005}$

probability = 0.2517

6 0

4 years ago