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
Anna [14]
2 years ago
7

Write an explicit formula for an, the nth term of the sequence 21, 27, 33, ....

Mathematics
1 answer:
anygoal [31]2 years ago
6 0

Answer:

Step-by-step explanation:

Remark

This is an arithmetic series. Each term differs by 6 from the previous one.

Givens

a1 = 21

d = 6

Formula

a_n = a1 + (n - 1)*d

Sample

Try it.

Let's let n = 3 which we have the answer for.

a_3 = 21 + (3-1)*6

a_3 = 21 + 2 * 6

a_3 = 21 + 12

a_3 = 33

That's exactly what the 3rd term is.

You might be interested in
Help please I will mark you as brainlyist!!!
Zielflug [23.3K]

Answer: 8

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
The graph below shows the relationship between the number of people in a group and the total cost of admission tickets for a cir
bekas [8.4K]

Answer: The answer is b because what is 1 number of person and the cost of the admission.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Solve for x: 2(x-3)+5=4-7(2x-1)
Marat540 [252]
Solve for x by simplifying both sides of the equation , then isolating the variable 
your answer is x=3/4
3 0
3 years ago
I need help with number 30 and please show work
Lady bird [3.3K]
30)

10 x 6 = 60
 11 x 4 = 44
12 x 4 = 48

60 + 44 + 48 = 152 cm^2

answer: area = 152 cm^2

3 0
3 years ago
Read 2 more answers
Help
weeeeeb [17]

Answer:

If a polygon is convex, then the sum of the measures of the exterior angles, one at each vertex, is 360° .

Consider the sum of the measures of the exterior angles for an n -gon.

N=180n−180(n−2)

Distribute 180 .

N=180n−180n+360 =360.

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • What is the place value of 9 in 46.934?
    8·2 answers
  • Please help me with this thanks
    15·1 answer
  • Which polynomial is written in ascending order?
    12·1 answer
  • Itzik 45 seconds to fill an 18 down container how long will it take to fill a 40 gallon container
    13·2 answers
  • Solve log(9/x) when x=9​
    6·1 answer
  • Why is underfind the square root of a negative number?​
    9·2 answers
  • Can someone answer this please its an timed assignment and nobody is helping me :c
    9·1 answer
  • What is the length of a
    15·1 answer
  • Geometric mean of 25 and 35
    11·1 answer
  • Brass is an alloy made by melting and mixing copper and zinc. A metallurgist has two brass
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!