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
Pie
3 years ago
15

The 20th term of an arithmetic progression 1,5,9,13......​

Mathematics
2 answers:
slavikrds [6]3 years ago
5 0

Answer: 61

Step-by-step explanation:

If the difference between 13 and 1 is 12 in 4 terms then 12x5+1 should equal the 20th term.

r-ruslan [8.4K]3 years ago
5 0

Answer:

a₂₀ = 77

Step-by-step explanation:

There is a common difference between consecutive terms , that is

5 - 1 = 9 - 5 = 13 - 9 = 4

This indicates the sequence is arithmetic with nth term

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 1 and d = 4 , then

a₂₀ = 1 + (19 × 4) = 1 + 76 = 77

You might be interested in
How to put -7/9 and -4/9 and 1/9 and 1/2 on a number line from least to greatest
WARRIOR [948]

Step-by-step explanation:

Take the LCM of the denominators:

=> LCM = 18

=> -7/9 x 2/2 = -14/18

=> -4/9 x 2/2 = -8/18

=> 1/9 x 2/2 = 2/18

=> 1/2 x 9/9 = 9/18

When the number is negative, the greater the number, the smaller it is.

So, -14 is smaller than -8.

< = smaller than

=> -14/18 < -8/18 < 2/18 < 9/18

=> -7/9 < -4/9 < 1/9 < 1/2

4 0
3 years ago
Read 2 more answers
A desk is on sale for 34%  off. The sale price is $363  .What is the regular price? I tried this problem so many times but I kee
elena-14-01-66 [18.8K]
The answer is the regular price is $486.42
8 0
3 years ago
Read 2 more answers
Find the median of the following numbers: 195, 230, 200, 226​
BlackZzzverrR [31]

Answer: 213

Step-by-step explanation: The median is the middle number

in the data set when the data set is written from least to greatest.

So let's start with writing ur data set from least to greatest.

So we have 195, 200, 226, 230.

Notice that there are two middle numbers.

If there are two middle numbers in the data set,

we find the median by taking their average.

In other words, we add the two middle numbers and divide by two.

So we have 200 + 226/2 or 426/2 which is 213.

3 0
3 years ago
Which number is irrational...please help!!
yKpoI14uk [10]

Answer:

D I think

Step-by-step explanation:

7 0
3 years ago
Karin wants to use the distributive property to find the value of 19·42+19·58 mentally. Which expression can she use?
katrin2010 [14]
19 * 42 + 19 * 58 =
19(42 + 58) =
19 * 100 =
1900
7 0
4 years ago
Other questions:
  • A fence is 7 feet 6 inch high. 1 foot = 12 inches. what is the height of the fence​
    5·1 answer
  • 5 SIMPLE QUESTIONS <br> 100 POINTS! BEST DEAL OF YOUR LIFE!
    8·2 answers
  • Help me ASAP I need a math equation for this someone pls pls pls help me I don’t get it
    7·2 answers
  • Please ignore the work done in pencil. Can somebody help me do this
    12·1 answer
  • Which is the last operation performed when evaluating (8 minus 2 x) squared + 4 for x = 3?
    9·1 answer
  • ANSWER QUICKLY PLEASE. WILL BE AWARDED BRAINLIEST ANSWER
    12·1 answer
  • If someone could answer this problem and explain how to do it that would be a HUGE help thanks-
    13·2 answers
  • No trolls pls help asap!!
    6·1 answer
  • I need help with this pls
    6·1 answer
  • Please help me out. Don't answer if you don't know the answer. NO LINKS!!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!