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
Elza [17]
2 years ago
15

The formula n(n+1)/2

Mathematics
1 answer:
mafiozo [28]2 years ago
5 0
The answer is in the attached image

You might be interested in
1) any letters can change into an a
Dimas [21]
CAC can be changed into CAAC. This is because the first rule says that any letter can change into an A so
 CAC=CAA
The last condition says that when you double , you have to double all letters,
Since A has been doubled,C needs to be doubled too.So:
CAA=CAAC

4 0
3 years ago
Find the value of c using the diagram below
vesna_86 [32]

Check the picture below.


notice that 146° is sitting on a flat-line, and thus it has a sibling linear angle, namely 34°.

now, recalling that a triangle has a sum of 180° for all interior angles, the missing one is 126°, and incidentally that is a corresponding angle with "c".

8 0
2 years ago
Help needed! (will mark as brainliest)
Aloiza [94]

Answer:

it is the 3rd option

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
the smaller rectangle is a 1/4 scale drawing of the original figure. Use the drop-down menus to show the missing dimensions of t
mihalych1998 [28]

Answer:the answer is 363

Step-by-step explanation:

4 0
3 years ago
Find the geometric mean between 18 and 7. Write your answer in radical form.
USPshnik [31]

Answer:

option D is correct answer

6 0
2 years ago
Other questions:
  • Regroup through thousands is the topic<br> Question: 25 tens = _____hundreds 5 tens?
    11·1 answer
  • A circle has a radius of 5 inches. What is the circumference of the circle? Use 3.14 for pi.
    15·2 answers
  • 3/2 (6 - 18x) &gt; 12<br> Solve
    14·1 answer
  • Write the range of f(x) in all three notations if the domain is -2 &lt; x &lt; 6 . f(x)=x+3f(x)=x+3
    8·1 answer
  • Nichole ran 11 3/4 miles on Monday, 10 1/5 miles on Tuesday and only 7 7/8 miles on Wednesday. Estimate how many miles she ran i
    6·1 answer
  • What is the range for the following numbers?<br> 5,1,12,3,4,2,10​
    5·2 answers
  • Find the slope and the y-intercept of the line with the given equation.
    10·1 answer
  • Lin has a pet German shepherd that weighs 38 when measured in one unit and 84 when measured in a different unit. which measureme
    13·1 answer
  • What is the value of arctan 0.866?​
    15·1 answer
  • If CP=Rs 500 and SP=550.find profit and profit percent%.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!