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
Zina [86]
3 years ago
5

Efectuati! (-1)+2+(-3)+4+(-5)+...+(-19)+20 Ajutati-ma, va rog!

Mathematics
1 answer:
alexira [117]3 years ago
8 0

Answer:10

Step-by-step explanation:

2+4+6+.....+20- (1+3+5+7+...+19)=(2-1)+(4-3)+(6-5)+....+(20-19)=1+1+...+1 ( de 10  ori= 10 times)

=10

You might be interested in
Can someone please help me
weqwewe [10]

Answer:

Looks like (-5,1.5)

Step-by-step explanation:

Because it is halfway between the 1 and the 2

Hope This Helps!

5 0
3 years ago
A square has a diagonal length of 24 inches. What is the area of the square?
SIZIF [17.4K]
The answer is 576 in^2
3 0
3 years ago
Multiply these polynomials.
maksim [4K]
When we multiply the polynomials we will get:
(5x^2+2x)(3x^2-7x+4)
=5x^2(3x^2-7x+4)+2x(3x^2-7x+4)
=15x^4-35x^3+20x^2+6x^3-14x^2+8x
=15x^4+(6x^3-35x^3)+(20x^2-14x^2)+8x
=15x^4-29x^3+6x^2+8x
The correct answer is C
4 0
3 years ago
The ordered pair (22, -45) is located in which quadrant of a coordinate plane?
Sergeu [11.5K]

Answer:

where is the graph

Step-by-step explanation:

3 0
3 years ago
A math teacher gets a starting salary of $30,000. IF she gets a 1.5% increase in salary each year, what will her total income be
kolezko [41]
No it is not base e.  It is 1.015.

An increase of 1.5 % =  1.015 

Year            1,             2,                       3,.........................., 30.
               30000, 3000(1.015),  30000(1.015)²,........... 30000(1.015)²⁹

Her Total Income is sum over the thirty 30 year period:

Sn =  a(r^n  - 1) / (r - 1);                a = 30000,  r = 1.015,  n = 30

Sn =  30000 ( 1.015^30  -  1) / (1.015 - 1)

      =  30000 (1.56308022 - 1) / (0.015) =  1126160.44

Total =  $ 1 126 160.44

5 0
3 years ago
Other questions:
  • The length of a rectangle is (3x − 5) inches, and its width is 2x inches. Find the area of the rectangle. Hint: Area of a rectan
    11·2 answers
  • Which of these variables is least likely to have a normal distribution?
    15·2 answers
  • A man received 15% more than the other man when they shared an inheritance of $4,300. How much did each receive?
    9·2 answers
  • If zero is a natural number?
    11·2 answers
  • According to the rational root theorem, which of the following are possible
    10·1 answer
  • Marking brainiest!!! pleaseee help asap!!!
    13·1 answer
  • A government official is in charge of allocating social programs throughout the city of Vancouver. He will decide where these so
    10·1 answer
  • A 14.1 liter fish tank is being filled by 2 water faucets. Water flows out of Faucet A at the rate of 140 milliliters per minute
    10·1 answer
  • Find the distance using the modulus of the difference between z1 = -8 + 3i and z2 = 7 - 4i.
    12·1 answer
  • N
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!