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
Sergeu [11.5K]
3 years ago
15

What is the explicit formula for this sequence?

Mathematics
1 answer:
SVEN [57.7K]3 years ago
4 0

Answer:

The correct answer is b.)

Step-by-step explanation:

Given:

Sequence  -7, -4, -1, 2, 5.......  => a₁ = -7, a₂ = -4, a₃ = -1, a₄ = 2 and a₅ = 5

We conclude that this sequence is arithmetic series.

First we must find difference d:

d = a₂ - a₁ = a₃ - a₂ = -4 - (-7) = -1 - (-4) = -4 + 7 = -1 + 4 = 3

d = 3

The formula for n-th term of the arithmetic series is:

aₙ = a₁ + (n-1) d

aₙ = -7 + (n-1) 3

God with you!!!

You might be interested in
Consider the following formula
Gelneren [198K]
Hello
This question requires us to change the subject of a formula. This can be achieved by following the order of operations in reverse. First, isolate the terms with our variable of interest, x:
ax - bx = z - y
Then, we take x out as it is being multiplied to both a and b:
x(a - b) = z - y
Dividing (a - b) on both sides, we get:
x = (z - y) / (a - b)
Thus, the answer is A
3 0
3 years ago
Please help me solve for the value of x
love history [14]

Step-by-step explanation:

hope i helped pleae mark brainliest

6 0
3 years ago
Read 2 more answers
Ravi lost 80 dollars from his pocket.<br>Write a signed number to represent this change.​
Mariana [72]

Answer:

x - 80

Step-by-step explanation:

Ravi had x dollars in all.

x - 80

5 0
3 years ago
What are the steps to covert the answer into a mixed fraction of this problem 45 x 3/8= 135/8
riadik2000 [5.3K]
1. Divide 135 by 8 which is equal to 16
2. Multiply 16 ×8 = 128
3. Subtract 135 - 128 =7

The seven represent the numerator so it would be 7/8.

The finally answer would be

16 \ \frac{7}{8}
7 0
3 years ago
Chad washes windows after school to make some extra money. He charges $5.50 to wash each window. If the customer provides the su
Fynjy0 [20]
The second option. The 5.5w part shows that its $5.50 times each window. The -3.25 is because he deducted 3.25 from the total. And then you have the price that he got on the other side. 

Here's the work to find the windows in case you want it:
5.5w-3.25=35.25
5.5w=38.50
w=7
He washed 7 windows
3 0
3 years ago
Read 2 more answers
Other questions:
  • Christopher went into a restaurant and bought 5 hamburgers and 10 drinks, costing a total of $52.50. Wyatt went into the same re
    13·1 answer
  • What are equivelent froctions of. 7/12
    6·2 answers
  • Simply 3mn^4+6mn^4 please help
    12·2 answers
  • Stuck on question 9.
    13·1 answer
  • SOMEONE PLEASE HELP ME ASAP PLEASE!!!​
    10·1 answer
  • How do you solve 70 -7•7
    15·2 answers
  • 4. A loan made on March 12 is due September 10 of the following year. Find the exact time for the loan in a non-leap year and a
    6·1 answer
  • What is the slope of the equation y-<br> 5=-X?
    5·1 answer
  • TPPC 22345 is a non-real time plan. What does non-real time mean?
    6·1 answer
  • BRAINLIST TO THE FIRST PERSON THAT GETS THIS RIGHT!!!!Decide whether this inequality statement is true or false. -5 &gt; 2 *
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!