1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sattari [20]
2 years ago
12

Please help meeeeeeeeeeeeeeeeeeeeeeeeeeee

Mathematics
2 answers:
myrzilka [38]2 years ago
5 0

\\\text{Given that,}~~a_1  =-3\\\\a_n = 3a_{n-1} +5 \\\\a_2 = 3a_{2-1} +5 = 3a_1 +5 = 3(-3) +5 = -9 +5 =-4\\\\a_3 = 3a_{3-1} +5  =3a_2 +5 = 3(-4) +5 = -12 +5 =-7\\\\a_4 = 3a_{4-1} +5 = 3a_3 +5  = 3(-7) +5 = -21+5=-16\\\\\\-3,-4,-7,-16....

Contact [7]2 years ago
4 0

Ok don't hurt yourself I'm here ...

a(n) =  3a(n - 1) + 5

_____________________________________________

<h2>n = 2</h2>

put 2 instead of any "n" you can see in the above equation

a(2) = 3a(2 - 1) + 5

a(2) = 3a(1) + 5

Oh can you see that " a(1) " we know what it is :

a(1) =  - 3

So :

a(2) = 3 \times ( - 3) + 5

a(2) =  - 9 + 5

a(2) =  - 4

_____________________________________________

<h2>n = 3</h2>

put 3 instead of blablabla...

a(3) = 3a(3 - 1) + 5

a(3) = 3a(2) + 5

Oh we just found a(2) so :

a(3) = 3( - 4) + 5

a(3) =  - 12 + 5

a(3) =  - 7

_____________________________________________

<h2>n = 4</h2>

put 4 ...

a(4) = 3a(4 - 1) + 5

a(4) = 3a(3)  + 5huh a(3)

a(4) = 3( - 7) + 5

a(4) =  - 21 + 5

a(4) =  - 16

_____________________________________________

So the first four term of the sequence is :

- 3 \: , \:  - 4 \: , \:  - 7 \: , \:  - 16

There u go...

Have a great day ♡

You might be interested in
Daniel rides his bicycle 21km west and then 18km north. How far is he from his starting point?
insens350 [35]

This is a right triangle. To find the length of the hypotenuse a^2 + b^2 = c^2.

21^2 + 18^2 = c^2

441 + 324 = c^2

765 = c^2

27.66 km

6 0
3 years ago
A coin is tossed twice. What is the probability of the coin landing heads up both times
FromTheMoon [43]
1/2 is the probability the coin would land heads up both times.
8 0
3 years ago
3x/3=? I WILL MARK U BRAINLIST!!!!!
insens350 [35]

Answer:

3 x 3 =9

Step-by-step explanation:

9

4 0
3 years ago
Read 2 more answers
Find the magnitude of the vector from the origin to (-7, -5) and write the vector as the sum of unit vectors.
Agata [3.3K]
The answer is b okkkkkk
7 0
2 years ago
Describe how the shapes moves to get from its position in each frame from the next.
Colt1911 [192]

Answer:

Mark me as brain list plz for fun I need to get my expert rank

Step-by-step explanation:

There is no attachment to see any grams post then I will answer

3 0
2 years ago
Other questions:
  • X+2y+z=4 <br> 2x-y+4z =-8<br> -3x+y-2z=-1
    9·1 answer
  • Answer don't just explain Im ❓.
    12·1 answer
  • A museum sells different items in their gift shop. The graph shows how many of each item was sold one day.
    15·2 answers
  • Evaluate 4m+23+np−3, when m=7, n=2, and p=8.
    13·2 answers
  • ) Farmer Ben has only ducks and cows 24 in total. He can’t remember how many of each he
    5·1 answer
  • Helps me solve this problem please
    13·1 answer
  • An ice cream stand offers four flavors:
    5·1 answer
  • Simplify the expression35into an equivalentradical expression.
    15·1 answer
  • Find the product of 4/6-2a x 3-a/2<br>a.1<br>b.2<br>c.3<br>d.4
    10·1 answer
  • Help me pleaseeeeeeeeee
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!