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Ipatiy [6.2K]
3 years ago
15

Find the ninth partial sum of infinite sumnation 3i-4

Mathematics
1 answer:
snow_tiger [21]3 years ago
3 0
\bf \sum\limits_{i=1}^9\ 3i-4\implies \sum\limits_{i=1}^9\ 3i-\sum\limits_{i=1}^9\ 4\implies 3\sum\limits_{i=1}^9\ i-\sum\limits_{i=1}^9\ 4
\\\\\\
3\cdot  \cfrac{9(9+1)}{2}-(9\cdot 4)

and surely you know how much that is.
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.
weqwewe [10]

Answer:

b. g(x) = ƒ(3x)

Step-by-step explanation:

We can use the graph to find the transformation which has been performed to obtain g.

g(x) is more stretched than x which means the function values are multiplied by some integer to obtain g(x). <u>This eliminates the options a and d.</u>

Now to check which factor is used to transform the function f(x) we can divide the x-coordinates of the points of new and old function.

So,

6/2 = 3

-6/-2 = 3

The function is stretched by a factor of 3.

Hence, the correct answer is:

b. g(x) = ƒ(3x)  ..

6 0
3 years ago
one sixth of the students in a school marching band are in the percussion section, the percussion section has 6 students, how ma
Igoryamba

Answer:

36 students

Step-by-step explanation:

because if 1/6 is 6 students then you have to multiply the 6 by 6

4 0
3 years ago
Read 2 more answers
Round this number to two significant figures. 72.8 <br><br> 1. 72<br> 2. 73 <br> 3. 73.0 <br> 4. 74
marishachu [46]
The answer is 73 because 8 is more than 5 so it rounds up to be 73
8 0
4 years ago
A computer programm contains one error.in order to find the error, we split the program in to blocks and test 2 of them,selected
kolezko [41]
If the E(X) = 1 then that means it has a 100% which is incorrect.
Each block has an equal probability to contain the error so 1/3 because you choose 2/6.
5 0
3 years ago
What common side do DHB and DEB share?<br><br>A. DH<br>B. BD<br>C. EB<br>D. HB
anastassius [24]

Answer:

The common side is B-E.

Step-by-step explanation:

The only side that they have the same is B-E.

7 0
3 years ago
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