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
Ber [7]
4 years ago
9

Write the summation that represents the series 15 + 18 + 21 + 24. What is the explicit formula for the series shown?

Mathematics
1 answer:
Olenka [21]4 years ago
5 0

Answer:

<em>Summation</em>: \sum_{n=1}^4(3n+12)

<em>Explicit formula</em>: a_n=3n+12

Step-by-step explanation:

The given series is 15 + 18 + 21 + 24.

The first term of this series is a_1=15.

The common difference is d=18-15=3

The explicit formula is given by: a_n=a_1+d(n-1).

We plug in the known values to get:

a_n=15+3(n-1)

a_n=15+3n-3

The explicit formula is a_n=3n+12

The summation that represents the series is: \sum_{n=1}^4(3n+12)

You might be interested in
What is the value of y in the equation 6 + y = −3?
oee [108]
The value of y is -9
6 0
4 years ago
Consider the diagram and angle measurements shown below.
Gala2k [10]
M2 would be (3x-54) just like m5
8 0
3 years ago
A dozen apples cost$4.92 for a dozen apples is a ratio of what per Apple
serg [7]

Answer:

12 : 4.92

Step-by-step explanation:

a= apples

12a=4.92

12 : 4.92

3 0
3 years ago
What is the solution to this equation 8y minus 2 equals negative 18
EleoNora [17]
8y - 2 = - 18
8y = - 16
y = - 2

i am a mathematics teacher. if anything to ask please pm me
3 0
4 years ago
PLZ HELP 20 POINTS!<br><br> What is7√2 in simplest radical form?
shutvik [7]
9.8 I think... I hope this helps in any way
4 0
3 years ago
Other questions:
  • Please help ill give brainliest thanks and all 5 stars:((((((
    9·2 answers
  • Help me with this math question
    7·2 answers
  • 3.5(x+2.2)^2+3.5(y-11.1)^2=21 what is the radius of the circle?
    8·1 answer
  • If Susie is 14, what was her age x years ago? x - 14 14 - x 14x
    7·2 answers
  • Which ordered pair is a solution of the equation y = –5/4x – 2?
    7·1 answer
  • What is the descimal representation of seven hundredths
    10·2 answers
  • Help will mark brainiest
    12·1 answer
  • In the figure below, mZ1 =(x+44) and mZ2=3xº.<br> Find the angle measures.
    6·1 answer
  • Can u please help me pls i ll give 5 stars and a heart
    11·2 answers
  • What's the new volume of the new box?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!