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ddd [48]
2 years ago
6

What are the first four terms in the sequence Tn=4n+9?

Mathematics
1 answer:
marysya [2.9K]2 years ago
6 0

Answer: If the initial term of an arithmetic sequence is a 1 and the common difference of successive members is d, then the nth term of the sequence is given by: a n = a 1 + (n - 1)d The sum of the first n terms S n of an arithmetic sequence is calculated by the following formula: S n = n (a 1 + a n)/2 = n [2a 1 + (n - 1)d]/2

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Answer:

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Step-by-step explanation:

8 0
3 years ago
I dont understand how to do this inequality 4x +6 <-6
Mama L [17]
4x + 6 < -6

First, subtract 6 from both sides. / Your problem should look like: 3x < -6 - 6
Second, simplify -6 - 6 to -12. / Your problem should look like: 3x < -12
Third, divide both sides by 4. / Your problem should look like: x < -\frac{12}{4}
Fourth, simplify \frac{12}{4} to 3. / Your problem should look like: x < -3

Answer: x < -3
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5 0
3 years ago
Help me please and thanks
Diano4ka-milaya [45]
I believe it could be option 1
4 0
2 years ago
In the Diagram Lines M And N are Parallel M &lt; 2 = 150 degress, Find the Measure of the following angles
Snezhnost [94]

<4= 150
<6=150
because the angels are parallel <4 & <2 are the exact same measurements and because 6 is perpendicular to  <4 & <2 thus making it also 150 degrees


5 0
3 years ago
Which expression is equivalent to -9x^-1y^-1 / -15x^5 y^-3 Assume x = 0 y = 0
jenyasd209 [6]
For this case we have the following expression:
   -9x ^ -1y ^ -1 / -15x ^ 5 y ^ -3
 For power properties we have:
   -9x ^ (- 1-5) y ^ (- 1 - (- 3)) / - 15
 Rewriting we have:
   9x ^ (- 6) y ^ (- 1 + 3) / 15
   3x ^ (- 6) y ^ (2) / 5
   3y ^ 2 / 5x ^ 6
 Answer:
 
  3y ^ 2 / 5x ^ 6Note: answer is not between the options. Rewrite the expression again, or the options.
8 0
3 years ago
Read 2 more answers
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