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
Bingel [31]
1 year ago
6

Look at the number line below.

Mathematics
1 answer:
Paladinen [302]1 year ago
3 0
? -2 -1 0 1

-1-2=-3

The answer is -3
You might be interested in
How do the values in Pascal’s triangle connect to the coefficients?
damaskus [11]

Explanation:

Each row in Pascal's triangle is a listing of the values of nCk = n!/(k!(n-k)!) for some fixed n and k in the range 0 to n. nCk is <em>the number of combinations of n things taken k at a time</em>.

If you consider what happens when you multiply out the product (a +b)^n, you can see where the coefficients nCk come from. For example, consider the cube ...

  (a +b)^3 = (a +b)(a +b)(a +b)

The highest-degree "a" term will be a^3, the result of multiplying together the first terms of each of the binomials.

The term a^b will have a coefficient that reflects the sum of all the ways you can get a^b by multiplying different combinations of the terms. Here they are ...

  • (a +_)(a +_)(_ +b) = a·a·b = a^2b
  • (a +_)(_ +b)(a +_) = a·b·a = a^2b
  • (_ +b)(a +_)(a +_) = b·a·a = a^2b

Adding these three products together gives 3a^2b, the second term of the expansion.

For this cubic, the third term of the expansion is the sum of the ways you can get ab^2. It is essentially what is shown above, but with "a" and "b" swapped. Hence, there are 3 combinations, and the total is 3ab^2.

Of course, there is only one way to get b^3.

So the expansion of the cube (a+b)^3 is ...

  (a +b)^3 = a^3 + 3a^2b +3ab^2 +b^3 . . . . . with coefficients 1, 3, 3, 1 matching the 4th row of Pascal's triangle.

__

In short, the values in Pascal's triangle are the values of the number of combinations of n things taken k at a time. The coefficients of a binomial expansion are also the number of combinations of n things taken k at a time. Each term of the expansion of (a+b)^n is of the form (nCk)·a^(n-k)·b^k for k =0 to n.

6 0
3 years ago
PLEASE HELP!!! ILL GIVE BRAINLIEST, EXPLAIN YOUR ANSWER PLEASE
mart [117]

Answer: -20v^3 - 30x^2 +20

Step-by-step explanation:

simply multiply each term inside of the parentheses by -5.

4 0
3 years ago
Read 2 more answers
If R=4. Which is the correct answer if R is substituted into R+9
lora16 [44]
The answer is 13


If R=4 the the equation would be 4+9 which equals 13.
6 0
3 years ago
What is the simplified form of the equation 4/5n - 3/5 = 1/5n?
Oksi-84 [34.3K]

Answer:

n = 1 if you meant "(4/5)n - (3/5) = (1/5)n"

Step-by-step explanation:                                                                              

There's some ambiguity here.  Did you mean (4/5)n or did you

              4

mean --------- ?  Please use parentheses to eliminate this ambiguity.

              5n    

I'm going to assume that you meant to type in (4/5)n - (3/5) = (1/5)n.

Then we have (3/5)n = 3/5, or n = 1

                                                                                                 

4 0
3 years ago
In a certain country, the car number plate is formed by 4 digits from the digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 followed by 2 l
elena-s [515]

Answer:

none, because without the letters and numbers.the plate number can not be identify or formed

3 0
2 years ago
Other questions:
  • What is the area of a triangle with a base of 4v^3 and a height of vu^2?
    15·1 answer
  • How many 2/3- cup servings are in 6 cups of yogurt
    13·2 answers
  • Please Help, What is the value of x?
    9·1 answer
  • find three consecutive integers such that the sum of the first and twice the second is equal to the third plus four​
    6·1 answer
  • Helpppppp please ASAPpppppppppppppp!!!!!!!!!!!!!!!!!!
    14·1 answer
  • A shoe store uses a 60​% markup for all of the shoes it sells. What would be the selling price of a pair of shoes that has a who
    5·1 answer
  • PLEASE HELP! NO LINKS!!What is the slope of the line in the graph?
    6·1 answer
  • Mrs. McCormick asked students to track the number of times they referred to their planner to check for assignment details during
    5·1 answer
  • What is the aswer ??????​
    7·2 answers
  • A kite is flying 9.75 feet above a lamp post that is 84 2/3 feet tall. How high is the kitchen flying?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!