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3241004551 [841]
3 years ago
8

Use sigma notation to represent the following series for the first 12 terms. 2 +(-8) +32 + (-128) + .

Mathematics
2 answers:
Marysya12 [62]3 years ago
7 0
\displaystyle\sum_{i = 1}^{12} 2(-4)^{i-1}
VashaNatasha [74]3 years ago
5 0
This is simply Order of Operations. The answer should be 104.
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Please help me with this:
Katen [24]

Answer:

She used 22 paper fans, 66 balloons, and 32 streamers.

Step-by-step explanation:

In order to solve this problem, we need to find out the value of the paper fans. Because we need to find out the balloon amount, which is 3 times as much. The amount of streamers is 12 fewer than two times. We can't find it out just yet since we don't know the value of the paper fans. To find it out:

First, let's call the amount of paper fan as "x".

Then, we need to find out the amount of balloons. It is 3 times x. Which is the same as 3x.

The equation is now x + 3x + (?) = 120

We need to find out the amount of the (?).

So, to do that, it says the value is 12 fewer than 2 times the value of x. (x, because it is the amount of paper fans.)

It should be 2x-12.

Now, the equation is x+3x+2x-12=120.

Once we solve it, we know "x" is 22.

Now, we can multiply 3 by 22. Which is 66.

Then we can multiply 22 by 2, which is 44, and subtract 12, which is 32.

To double check, 22 + 44 + 32 = 120.

That's your answer!

5 0
3 years ago
Read 2 more answers
What does zero represent in your story problem
weqwewe [10]
What is the story problem put the story promblem
6 0
3 years ago
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18x-12=<br> 24x+48=<br> 45x_81=<br> 8x+15=
dlinn [17]

Answer:

1)  6(3x-2)

2) 24(x+2)

3) 9(5x−9) or 9(5x+9) if you meant to put addition.

4)8x+15

3 0
3 years ago
15 trucks can carry 26,850 kg weight. Find the weight carried by one truck.
nadya68 [22]

\huge\underline{\underline{\boxed{\color{blueviolet}{ANSWER}}}}

★ 15 trucks can carry 26,850 kg weight

★ We've to find the weight carried by one truck

\huge \pink {\overline{ \quad \quad \quad \quad \quad \quad \quad\quad \quad}}

\sf{Number  \: of \:  trucks = 15 }

\sf{Weight  \: carried  \: by  \: one \:  truck = \frac{26,850Kg}{15} }

\sf  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:                  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \:  \:  \:  \:= 1790Kg

Therefore , the weight carried by one truck is 1790 kg

7 0
2 years ago
What's 1 + 1 nothing more nothing less
umka21 [38]

Answer:

2, thx for free points i guess.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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