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
nalin [4]
4 years ago
10

Use Gauss's approach to find the sum for 1+2+3+4+...+999

Mathematics
2 answers:
borishaifa [10]4 years ago
8 0
Sn=(a₁+an)n/2

Data:
a₁=1
an=999
n=999

Sn=(1+999)*999 /2=(1000)*999/2=999000/2=499500

Answer: the sum is 499500
kow [346]4 years ago
4 0
1+999=1000
\frac{999}{2}
=499.5

The sum
=1000*499.5
=499500

You might be interested in
A parallelogram can have one pair or two pairs of parallel sides
Rudiy27

Answer:

A parallelogram can have 2 pairs of parallel sides.

Step-by-step explanation:

Think of a rectangle for a parallelogram. It has 2 pairs of parallel sides which makes it a parallelogram. The same for a square as well as it has 2 parallel pairs. Just remember that a parallelogram always has 2 pairs of parallel sides.

6 0
3 years ago
Why is 560-500 over 500 multiplied by 100?
Lady_Fox [76]

Answer:

12

Step-by-step explanation:

560-500=60

60/500*100=12

5 0
3 years ago
Read 2 more answers
It's make-your-own-dish night at your favorite pasta restaurant. The restaurant offers 5 types of pasta and 4 different sauces.
densk [106]

Answer:

there are 20 different combinations if that was the question.

Step-by-step explanation:

Formula :

Combination(event 1) times Combinations (Event2)

3 0
3 years ago
Database about trees include a height field. What kind of sort would list the data from tallest to shortest?
Inga [223]
Correct answer : 2) descending sort
8 0
3 years ago
Solve the system of equations <br><br> y=2x+1<br> y=x^2+2x-8
Lemur [1.5K]

Answer:

(3,7) and (-3,-5)

Step-by-step explanation:

To solve the system of equations, graph both functions. The (x,y) point(s) where the functions intersect is the solution(s).

See attached picture.

7 0
3 years ago
Other questions:
  • if your cell phone bill was $67.82 and there's a 7.5% late fee how much will you pay for your phone bill
    10·1 answer
  • You won a free ticket to see the latest Star Wars movie this Friday night (which you can costlessly resell for its face value of
    11·1 answer
  • How to rewrite 11x+13y=8 in slope intercept form
    12·2 answers
  • HELPPPPP<br> Find the sum of the series 18 +12 +8+16/3...
    10·1 answer
  • What is the answer for B in this?
    12·2 answers
  • 11. The surface area of a triangular prism is 78 square inches. What is
    12·1 answer
  • What is the minimum y-value after which the exponential function will always be greater than the linear function? y = 1 y = 3 y
    11·1 answer
  • The length and breadth of a rectangular ground is 30 m and 20 m respectively.A boy moves around the ground 5 times early morning
    12·1 answer
  • I dont get this and no links and a explanation please?
    5·1 answer
  • Don't espam plezz (个_个)​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!