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
SpyIntel [72]
3 years ago
9

Given the following arithmetic sequence find the formula.

Mathematics
2 answers:
Arada [10]3 years ago
7 0

Answer:

D. an = 4n

Step-by-step explanation:

The formula for finding a term of an arithmetic sequence is:

an = a1 + (n-1)d

where an is the nth term, a1 is the first term and d is the common difference between the terms.

To find d we can take any two adjacent terms and subtract one from the other. e.g. 8 - 4 = 4, 16-12 = 4 etc.

The common difference here is 4, and we can see that the first term of the sequence is also 4, therefore our formula now looks like this:

an = 4 + (n-1)4

Now we can just expand out the brackets to find the final answer:

an = 4 + 4n - 4

an = 4n

Hope this helped!

Ymorist [56]3 years ago
6 0
A is the correct answer please give me like
You might be interested in
Kobe wants to organize his toys. His box has a width 2 2/3 feet, length 3 1/3 feet, and height 2 1/3 feet?
Tanya [424]

Answer:

Cubic feet = Length (3 1/3 feet) x Width (2 2/3 feet) x Height (2 1/3 feet)

Step-by-step explanation:

3 1/3 x 2 2/3 x 2 1/3 = approximately 20.74 cubic feet

3 0
3 years ago
Actual lengths of pregnancy terms for a particular species of mammal are nearly normally distributed about a mean pregnancy leng
HACTEHA [7]

Solution :

The data is normally distributed.

The standard deviation is 18 days

Here the data is normally distributed and 54 days is 3 days of standard deviation.

Therefore, the percentage of the births that would be \text{expected to occur} within the 54 days of the mean \text{pregnancy} length is given by :

= P( -3 < Z < 3)

= 0.9544

= 95 %

Therefore, about 95% of the births would be \text{expected to occur} within 54 days of the men \text{pregnancy} length.

8 0
3 years ago
How do you classify a triangle by its sides
erik [133]
Triangle classification by sides would be scalene, no congruent sides; isosceles, at least 2 congruent sides; equilateral, 3 congruent sides.
6 0
4 years ago
Read 2 more answers
Estimate the quotient
juin [17]

#5

57.8 can be rounded to 60 because 57.8 is closer to 60 than 50 and 81 is relatively close to 80. if we had to estimate the quotient, we would have

60 ÷ 80 = 0.75

#8

2.8 can be rounded to 3 because 2.8 is closer to 3 than it is to 2 and 6 can be left alone because it will make our division easier.

3 ÷ 6 = 0.5

#11

737.5 can be rounded to 700 and 9 can be rounded to 10.

700 ÷ 10 = 100

4 0
4 years ago
Help me now I'm big brain
MAXImum [283]

Answer:

11/8 in mixed form would be 1 3/8.

Step-by-step explanation:

Please brainliest if possible!

4 0
3 years ago
Other questions:
  • 2. Brian went to the store for fruit for his
    13·1 answer
  • A family of two adults and three children goes to a play admission costs eight dollars per adult and $5 per child. What expressi
    15·1 answer
  • What value of c makes the equation -3c/4=24 true ?
    10·2 answers
  • There are 400 students in a school. Fifty five percent are girls. How many boys are there?
    6·1 answer
  • Sports Feet is having a sale on the Rebound basketball shoe. The shoe comes in four different colors (black, red, white, or gold
    13·1 answer
  • How many even, three-digit positive integers have the property that two of the digits are equal, but not all three are equal?
    12·1 answer
  • A restaurant is offering 2 specials: 10 burritos for $12, or 6 burritos for $7.50. Noah needs 60 burritos for his party. Should
    11·1 answer
  • Question 4 of 5 What is the main reason for using a data table to collect data?​
    10·1 answer
  • GIVING OUT BRAINLIEST(easy question ):<br><br><br><br><br> What’s 6+6=?
    13·1 answer
  • Hello, happy Friday, I am just here with some geometry questions.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!