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blondinia [14]
3 years ago
8

Which expression represents the series pictured?

Mathematics
2 answers:
Strike441 [17]3 years ago
6 0
Hello,
Answer A
\sum _{i=0} ^4 {5^i}=5^0+5^1+5^2+5^3+5^4=1+5+25+125+625
MAXImum [283]3 years ago
4 0

Answer:

A. \sum_{i=0}^{4}5^{i}

Step-by-step explanation:

We are given the series, 1+5+25+125+625.

It is required to find expression representing the given series.

As, we have,

1=5^{0}

5=5^{1}

25=5^{2}

125=5^{3}

625=5^{4}

Thus, it can be seen that the power is ranging from 0 to 4.

Hence, the expression representing the series is, \sum_{i=0}^{4}5^{i}

So, option A is correct.

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Ahh help plss!! thank u
AnnZ [28]
Basically you’re multiplying them both
(x^3 + 2x - 1)(x^4 - x^3 + 3)

so you need to make sure you multiply each one, if you do it right, you should end up with
x^7 - x^6 + 3x^3 + 2x^5 - 2x^4 + 6x -x^4 +x^3 -3

simplify by adding like terms
x^7 - x^6 + 2x^5 - 3x^4 + 4x^3 + 6x - 3

your answer would be the third option
4 0
2 years ago
In a small library , there are 5 nonfiction books for every 9 fiction books There are 130 a . How many fiction books are there ?
Mice21 [21]

Answer: 234

Step-by-step explanation:

If there are 130 nonfiction books, then there are 234 fiction books

6 0
3 years ago
According to a recent study, the average woman's leg hair grows an eighth of an inch per month. A new drug company believes that
Afina-wow [57]

Answer:

Step-by-step explanation:

Null hypothesis should be: The average woman's leg hair grows an eighth of an inch per month: u = eighth of an inch

Alternative hypothesis: The average woman's leg hair growth is not an eighth of an inch per month after treatment: u ≠ eighth of an inch

This test after carrying out its treatment will be able to determine if the drug was effective or not

5 0
3 years ago
The desert temperature, H, oscillates daily between 30ºF at 4am and 70ºF at 4pm. Write a possible formula for H in terms of t, m
densk [106]
<span>The find step is to find C which is the vertical shift. This is the average between the maximum and minimum. So its 30+70=100/2= 50. the amplitude (A) take the average of the difference between max. temp. and min. value So 70-30= 40/2= 20, but it becomes -20 because the graph is shifted up 50 degrees and decreases to 30 at 4a.m. Then the period is 2pi/B which is 2pi/24, which equals pi/12. A=-20 B= pi/12 C=50</span>
5 0
3 years ago
The price of a sweater was reduced from $20 to $12.By what percentage was the price of the sweater reduced?
Katen [24]

The price of the sweater was reduced by 40%

Step-by-step explanation:

Step 1; Cost before reduction was $20. The cost after reduction was 12$. Cost reduced= cost before reduction - cost after reduction

Cost reduced= $20 - $12 = $8

Step 2; We must find how much of the cost was reduced from the initial cost i.e. how much $8 is to $20. To do this we must convert it into a percentage. We divide the $8 with the $20 to get a value. This value must be multiplied with a 100 to be converted into a percentage.

Cost by which sweater was reduced=  \frac{8}{20}* 100 = 0.4 * 100 = 40

So the price of the sweater was reduced from $20 to $8 which equates to a reduction in 40%.

3 0
3 years ago
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