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
nika2105 [10]
3 years ago
9

What is the best approximation for the area of a circle with a diameter of 19 meters?

Mathematics
1 answer:
sammy [17]3 years ago
3 0
283.4 thats what my quiz said 
You might be interested in
If 7 less than 4 times a number is two more than that number, what is the result when the number is subtracted from 50?
Tasya [4]

Answer:

4x-7=x+2

3x=9

x=3

3-50=-47

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Which type of equation can be used to model the data in the table below?
leva [86]
X| 2|4|6jsososodidididjfjfifififififofioff
7 0
3 years ago
Ben is 20 years older than Daniel. Ben and Daniel first met two years ago. Three years ago, Ben was 3
fgiga [73]

Answer:

  33

Step-by-step explanation:

3 years ago, the difference in ages was twice Daniel's age. So, Daniel was 20/2 = 10 years old at that time. Ben was 30.

Now, Ben is 33.

_____

If two numbers have a ratio of 3:1, their difference is (3-1) = 2 times the smaller number.

4 0
2 years ago
What is the verbal for x/2
tatiyna
X ( a number) / (divided by) 2 (two)

A number divided by 2.
                  or
The quotient of a number, x, and 2.
5 0
2 years ago
Lindsay is checking out books at the library, and she is primarily interested in mysteries and nonfiction. She has narrowed her
Ratling [72]

Answer:

0.0677 = 6.77% probability that they will all be nonfiction

Step-by-step explanation:

The books are chosen without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x successes is given by the following formula:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

In which:

x is the number of successes.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

In this question:

10 + 12 = 22 books.

She chooses 4 books, which means that n = 4

12 nonfiction, which meas that k = 12

What’s the probability that they will all be nonfiction?

This is P(X = 4). So

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

P(X = 4) = h(4,22,4,12) = \frac{C_{12,4}*C_{10,0}}{C_{22,4}} = 0.0677

0.0677 = 6.77% probability that they will all be nonfiction

7 0
2 years ago
Other questions:
  • W/5=3 what does w equal
    9·2 answers
  • How many solutions does the system y = -7x + 3 and y + 7x = 10 have? Explain.
    5·1 answer
  • What is the root?<br> <img src="https://tex.z-dn.net/?f=3-%20%5Csqrt%7Bx%7D%20%3D0%20" id="TexFormula1" title="3- \sqrt{x} =0 "
    11·1 answer
  • Cerell’s Clothing
    13·1 answer
  • The length of rectangle PQRS is expressed as 2x+7. The width of rectangle PQRS is expressed as 3x−4. Which expression describes
    12·1 answer
  • Help please, I attached the question. Is it a!? <br> 
    9·2 answers
  • Which one? I can’t figure it put
    12·1 answer
  • laura wrote a 3-digit number. she doubled it, added 150, divided by 100, and added 6. her final result was 10. what number did l
    8·2 answers
  • PLEASE HELP!!! SILL GIVE BRAINLIEST (2-52)
    7·2 answers
  • Interest is compounded semianually. Find the amount in the account after the given time.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!