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
ryzh [129]
3 years ago
12

Coefficient of x^2 in expansion of (x+2)^5

Mathematics
1 answer:
iVinArrow [24]3 years ago
8 0
The x² term will be C(5,2)x²·2³ = 80x².

The coefficient is 80.

_____
C(n, k) = n!/(k!·(n-k)!)
C(5, 2) = 5·4/(2·1) = 10
You might be interested in
It takes 4 pounds of apples to make 6 cups of applesauce.
Serjik [45]

Answer:

Step-by-step explanation:

4lbs of apples to 6 cups of apple sauce

we can write this as 2:3

the correct choices: 6:9 and 14:21

4 0
3 years ago
7. Find the distance between the points (13, 8) and (-12, 6)
Alik [6]

9514 1404 393

Answer:

  √629 ≈ 25.08

Step-by-step explanation:

The distance formula is useful for this.

  d = √((x2 -x1)² +(y2 -y1)²)

  d = √((-12 -13)² +(6 -8)²) = √(625 +4) = √629 ≈ 25.08

The distance between the points is about 25.08 units.

3 0
2 years ago
Which correlation coefficient represents a moderate negative correlation? r = –0.04 r = –0.24 r = –0.64 r = –0.94
fomenos

The correlation coefficient is a number that indicates the direction

and closeness of points of a line of best of fit.

So it tells us two things.

It tells us the direction of the line of best fit

and it tells us the closeness of the points.

Usually, anything between -0.9 and -0.6 has a moderate negative correlation. If you look at this on a graph, you will notice that the points definitely resemble a line so we say it's moderate.

It will be a negative correlation because the slope is negative.

5 0
3 years ago
Read 2 more answers
Jon borrows $6.50 from his friends to pay for snacks, and $11.75 from his sister to go to the movies. how much money does he nee
Alex777 [14]

Answer:

Step-by-step explanation:

You need to add $6.50 and $11.75 and you get $18.25.

3 0
3 years ago
Read 2 more answers
Which table represents a function?
Orlov [11]

Answer:

tüm Türkiye'ye gönderilir ve hangi

Step-by-step explanation:

Metin kutusuna yapıştırmak için klibe dokunun.

3 0
1 year ago
Other questions:
  • The following area model represents what number sentence?
    6·1 answer
  • Please solve the following question!!
    13·1 answer
  • Help please! Math Nation Section 6 Test Yourself Practice Tool.
    10·2 answers
  • How can scientists use the following pedigree?
    10·1 answer
  • Chelsea drew two parallel lines KL and MN intersected by a transversal PQ, as shown below: Two parallel lines KL and MN with PQ
    15·1 answer
  • Jamie is riding a Ferris wheel that takes fifteen seconds for each complete revolution. The diameter of the wheel is 10 meters a
    12·1 answer
  • Can someone just help me !
    12·2 answers
  • What is four plus eight
    8·2 answers
  • Is -3,10 a solution for y = -3x-1
    12·1 answer
  • Please help me solve this! also this is proportions by parts
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!