All categories

4 years ago

Find s25 for 4 14 24 34

Mathematics

2 answers:

maksim [4K]4 years ago

8 0

Answer:

The value of $S_{25}$ is 3100.

Step-by-step explanation:

The given arithmetic sequence is

4, 14, 24, 34

First term of AP is 4 and common difference is

$d=a_2-a_1\Rightarrow 14-4=10$

We need to find the value of $S_{25}$ . It means we have to find the sum of first 25 terms of the given AP.

The formula for sum of first n terms of an AP is

$S_n=\frac{n}{2}[2a+(n-1)d]$

where, n is number of terms, a is first term and d is common difference.

The sum of first 25 terms is

$S_{25}=\frac{25}{2}[2(4)+(25-1)(10)]$

$S_{25}=\frac{25}{2}[8+240]$

$S_{25}=\frac{25}{2}[248]$

$S_{25}=3100$

Therefore the value of $S_{25}$ is 3100.

S_A_V [24]4 years ago

7 0

From the question, "s25" means the sum of the first 25 terms in the arithmetic sequence given. Given that the difference between each term is 10, the summation notation can be written as such:

24
<span> ∑ (4 + 10X)
</span>n = 0

Such that, the sum of the first 25 terms is 3100..

You might be interested in

Select the correct answer. Function f is an exponential function that has an initial value of 64 and decreases by 50% as x incre

lozanna [386]

9514 1404 393

Answer:

D. Both functions are decreasing at the same average rate on that interval

Step-by-step explanation:

The dashed lines on the attached graph of the two functions (f in red, g in purple) represent the average rate of change of each function on the interval. The lines are parallel, because the average rate of change is the same for each of the functions on that interval.

Function f decreases by 60 units from f(0) = 64 to f(4) = 4 on the interval x = [0, 4]. Function g decreases by 60 units from g(0) = 75 to g(4) = 15 on the same interval. The average rate of change is the amount of decrease divided by the interval width. Those values are the same for both functions.

3 0

3 years ago

Read 2 more answers

Using the data below, calculate the absolute error for the 3rd week. use the 2 period moving average to create the forecast

dusya [7]

If we had the info on with this "data" is, we then can solve it.

3 0

3 years ago

An externally imposed project completion time sets the project duration at 75 days. The critical path of the project is establis

Katen [24]

Answer:

3 days

Step-by-step explanation:

This can be seen under Schedule management (Initiating)

Project float is simply the difference between the completion period externally imposed and the estimated time duration of the project (usually this is equal to the critical path length). The difference in this case is 0 because

Externally imposed project date = 75 days

Estimated duration of project = 75 days

Hence, a difference in these will be 0

However, a standard deviation of 3 days was giving (This implies that there is a +/- 3 days in the critical path from the estimated project duration) .

Hence the maximum float in this case will be 0 + 3 = 3 days

8 0

3 years ago

Helpppppp!!!!!!!!!All you need to do is explain the steps!!!!

galben [10]

Answer: Heyy Bestie <3

The Answer Steps are down below

Stay Sliving