All categories

1 year ago

What is the sum of the first 6 terms of the sequence defined by an = 3n - 2?

Mathematics

1 answer:

Mashutka [201]1 year ago

3 0

Answer:

Step-by-step explanation:

when n=1

when n=2

t2=4

as first term is 1 and second term is 4 so the common difference is 3 ,for 6 term if you put this in formula for sum to the n term you will get 51

t1 =1

d=3

n=6

than S6=51

You might be interested in

If the first step in the solution of the equation 2x - 8 = 5x + 3 is "subtract 2x," then in the form of a paragraph, explain in

monitta

$x = \frac{-11}{3}$

Step-by-step explanation:

Here we have , If the first step in the solution of the equation 2x - 8 = 5x + 3 is "subtract 2x," then in the form of a paragraph, explain in complete sentences the next steps necessary to completely solve the equation for x. Let's solve this :

2x - 8 = 5x + 3

⇒ $2x - 8 = 5x + 3$

⇒ $(2x - 8)-2x = (5x + 3)-2x$ { subtract 2x from both side }

⇒ $0 - 8 = 5x-2x + 3$

⇒ $- 8 = 3x + 3$

⇒ $- 8 -3= 3x + 3-3$ { subtract 3 from both sides }

⇒ $- 11 = 3x + 0$

⇒ $- 11 = 3x$

⇒ $\frac{-11}{3} = \frac{3}{3} x$ { divide 3 from both sides }

⇒ $x = \frac{-11}{3}$

3 0

3 years ago

PLEASE HELP FAST!!!!!

lakkis [162]

Answer:

< W ≅ < P.

Step-by-step explanation:

< W ≅ < P.

< W is the refection of < P over the x-axis.

7 0

3 years ago

John found the diagram above in a section about animal tracks in his hiking manual. The pattern of the porcupine tracks shown ca

worty [1.4K]

The answer is C) glide and reflection because if it were graphed, it would be reflected a line equal to x and slid, or glided upward. Hope this helps! :D

3 0

3 years ago

Read 2 more answers

Please help me with this question ( im going to fail my classes-)

mafiozo [28]

Answer:

u will not fail i promise

Step-by-step explanation:

and the answer is the first becz we have to see the difference in arthimatic terms

5 0

3 years ago

Read 2 more answers