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
Simora [160]
3 years ago
11

2, -3, -8, -13, -18,

Mathematics
1 answer:
yawa3891 [41]3 years ago
5 0

Answer:

Step-by-step explanation:

2, -3 , -8 , -13 , - 18 .............

This is an arithmetic sequence.

First term = a = 2

Common difference = Second term - first term

                                 = -3 - 2 = -5

Nth term = a + (n - 1)*d

               = 2 + (n - 1)*(-5)

               = 2 + n*(-5) - 1 *(-5)

               = 2 - 5n + 5

             = 7 - 5n

n = 19,

19th term = 7 - 5*19

               = 7 - 95

               = - 88

n = 21,

21st term = 7 - 5*21

               = 7 - 105

               = -98

You might be interested in
The base of an isosceles triangle is one and a half times the length of the other two sides. A smaller triangle has a perimeter
stira [4]

Answer:

P = 1.5x.

Step-by-step explanation:

Let the length of each side of the first triangle be x, then

Perimeter of this triangle

= 2x + 1.5x

= 3.5x.

So perimeter of smaller triangle is:

P = 1/2 * 3.5x

P = 1,.5x.

5 0
3 years ago
A model airplane is 20 inches long and 4 inches wide. If the actual width of the airplane is 20 feet what is the lenght of the a
Kay [80]
The airplane is 100 feet long because 5*4=20 so  
that would mean that 20*5=100
7 0
3 years ago
Help me please! I would appreciate it! :)
zheka24 [161]

Answer:

-4

Step-by-step explanation:

distributing gets you to : 8h + 38 = -18 - 6h

then add 6h to 8h and you have 14h + 38 = -18

solve normally & thats how you get your answer

8 0
2 years ago
Read 2 more answers
A poll wishes to determine how many Americans agree with the policies of the current president. Pollsters
Anton [14]
2 Find the value of appropriate statistic
3 0
2 years ago
Help me i need help answer what u see and the rest i writ it and i will report u if u bad
12345 [234]

To find the Mean Absolute Deviation u need to find the difference between the numbers and the mean. Then find the mean of those differences.

ie 1,2,3

mean=2

differences: 2-1=1  2-2=0  3-2=1

1+0+1=2  2/3= .6 repeating

4 0
3 years ago
Read 2 more answers
Other questions:
  • Find the equation of the line with the given description: horizontal, passes through (0,11).
    13·1 answer
  • Jason and Kyle both choose a number from 1 to 10 at random. What is the probability that both numbers are odd?
    6·1 answer
  • Sammy has a counter that is red on one side and green on the other. The counter is shown below: A circular counter is shown. The
    8·1 answer
  • Solve and explain???? ​
    6·1 answer
  • Daniels mom started a college savings account for him when he was born.she opened the account with $5 and planned to deposit $10
    12·1 answer
  • What is the value of f?
    10·1 answer
  • Karl needs to build a stage that has an area of 90 square feet. The length of the stage should be longer than the width. What ar
    5·2 answers
  • 2.2 Evaluating Functions Practice​
    6·1 answer
  • Question 9
    8·1 answer
  • What type of number is<br> -15/3
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!