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Dmitriy789 [7]
3 years ago
15

Write the algebraic expression ​

Mathematics
2 answers:
Tcecarenko [31]3 years ago
6 0

Answer:

I had this on my test its A

Step-by-step explanation:

shusha [124]3 years ago
4 0

Answer:

x times 9

Step-by-step explanation:

A number = x

And 9 means x times 9

If this helps please mark as brainliest

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Gauthmath homework code - ER326P
frozen [14]

Answer:

wat

Step-by-step explanation:

4 0
3 years ago
choose all expressions that are equal to 2.65 + 3.78. A. 2.56 + 3.86 B. 3.78 + 2.65 C. 10 - 3.67 D. 9.51- 3.08 E. 8.21 - 2.78.
GrogVix [38]

2.65 + 3.78 = 6.43

B, D are equal to 6.43

4 0
3 years ago
Given the sequence in the table below, determine the sigma notation of the sum for term 4 through term 15. N an 1 4 2 −12 3 36 t
Rzqust [24]

By applying basic property of Geometric progression we can say that sum of 15 terms of a sequence whose first three terms are 5, -10 and 2 is                    \sum_{n=4}^{15} 5(-2)^{n-1}$$  

<h3>What is sequence ?</h3>

Sequence is collection of  numbers with some pattern .

Given sequence

a_{1}=5\\\\a_{2}=-10\\\\\\a_{3}=20

We can see that

\frac{a_1}{a_2}=\frac{-10}{5}=-2\\

and

\frac{a_2}{a_3}=\frac{20}{-10}=-2\\

Hence we can say that given sequence is Geometric progression whose first term is 5 and common ratio is -2

Now n^{th}  term of this Geometric progression can be written as

T_{n}= 5\times(-2)^{n-1}

So summation of 15 terms can be written as

\sum_{n=4}^{15} T_{n}\\\\$\\$\sum_{n=4}^{15} 5(-2)^{n-1}$$

By applying basic property of Geometric progression we can say that sum of 15 terms of a sequence whose first three terms are 5, -10 and 2 is                    \sum_{n=4}^{15} 5(-2)^{n-1}$$  

To learn more about Geometric progression visit : brainly.com/question/14320920

8 0
3 years ago
I'm confused I need help anyone
noname [10]
57-----------------------
6 0
3 years ago
What is the slope of the line (9,-6) and (-6- -9)?
Vlada [557]

Answer:

1/5

Step-by-step explanation:

Slope formula = (y2-y1)/(x2-x1)

((-6)- (-9))/ ((9)-(-6)

(-6 + 9)/ (9 + 6)

3/15

1/5

6 0
4 years ago
Read 2 more answers
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