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blondinia [14]
3 years ago
10

Please help me with a math question. Will mark Brainliest and 15 points. Below is a screenshot of the math question.

Mathematics
1 answer:
Leya [2.2K]3 years ago
6 0

Answer:

u should try quor

Step-by-step explanation:

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Write the sum using summation notation, assuming the suggested pattern continues. 8 - 40 + 200 - 1000 + ...
mr_godi [17]
Each successive term is -5 times the previous one, so the underlying sequence is

a_n=-5a_{n-1}=(-5)^2a_{n-2}=(-5)^3a_{n-3}=\cdots=(-5)^{n-1}a_1=8(-5)^{n-1}

The sum can then be written as

8-40+200-1000+\cdots=\displaystyle\sum_{n=1}^\infty8(-5)^{n-1}
3 0
4 years ago
Read 2 more answers
PLEASEEEEE I NEED HELPPPPP !!!!!!!
velikii [3]
(Volume for a rectangular shape is length x width x height)

We can split up this 3D composite figure into two main parts (as shown in the picture I attached), and find each part’s volume before adding them together for the total volume.

Cube —> 5x5x5 —> 25x5 = 125 in^3

Rectangular Prism —> 20x5x5 —> 100x5 = 500 in^3

125 + 500 = 625

So the answer is A. 625 in^3

Hope this helped! If I was correct, I’d appreciate it if you marked my answer as Brainliest.

7 0
3 years ago
The annual expenditure of the US federal government is approximately 4 44 trillion dollars. If a one dollar bill is 0 . 0 0 0 1
kaheart [24]

Answer:

<em>A stack of 4 trillion one dollar bills will be  4\times 10^8 meters.</em>

Step-by-step explanation:

The annual expenditure of the US federal government is approximately 4 trillion dollars.

We know,  1 trillion dollars = 10¹² dollars.

So,  4 trillion dollars =(4\times 10^1^2) dollars.

Each one dollar bill is 0.0001 meters thick.

So, the total height of the stack of 4 trillion one dollar bills will be.....

[0.0001\times(4\times 10^1^2)]meters\\ \\ =[10^-^4\times(4\times 10^1^2)]meters\\ \\ =(4\times 10^8) meters


6 0
3 years ago
a hotel has a number of meeting rooms,m,available for events. each meeting room has social 325 chairs .write an equation to repr
chubhunter [2.5K]

Answer: The required equation be

c=325m

Step-by-step explanation:

Since we have given that

Let the number of meeting rooms a hotel has be m

Number of social chairs each meeting room has =325

So, total number of chairs m number of meeting rooms will have

325\times m=325m

Let the number of chairs be c

According to question, we get

c=325m

Hence, the required equation be

c=325m

3 0
3 years ago
Can you comment the answer because for some reason it won't show up :)​
Finger [1]

D. 7 1/5

(4/5) *9= 7.2

7.2= 7 1/5

5 0
3 years ago
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