3 years ago

What is the sum of the first 7 terms of the series −4+8−16+32−... ?

Mathematics

1 answer:

blondinia [14]3 years ago

4 0

The terms appear to increase by a multiple of -2. The first 7 terms are:

-4 + 8 + -16 + 32 + -64 + 128 + -256. Add these together.

The sum of these numbers is -172.

You might be interested in

Karl and Mark are walking through the woods dropping breadcrumbs to help them find their way home. After ten minutes, their brea

givi [52]

Answer:

-8

Step-by-step explanation

$\frac{96-120}{13-10} = -8$

5 0

3 years ago

PLZ HELP

Mariulka [41]

Step-by-step explanation:

yes your answer is correct it's C

7 0

3 years ago

When blank <br> an<br> exponential expression to a blank <br> you<br> the exponents.

kherson [118]

Answer: i do not no

Step-by-step explanation:

6 0

3 years ago

Graph 2x -2= -4 and solve

devlian [24]

Answer:

x=-1

Step-by-step explanation:

2x -2= -4

2x = -2

x = -1

5 0

4 years ago

Read 2 more answers

How many solutions does this system of equations have? y=3x+1 y=3x+7

frutty [35]

Answer:

The following system of equation has no solution.

Step-by-step explanation:

since both of them are equal to y, set them equal to each other:

3x+1=3x+7

if you subtract both sides by 3x, you get 1=7. That is a contradiction, so this has no solutions.

8 0

3 years ago

Read 2 more answers