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
zhannawk [14.2K]
3 years ago
14

A number is chosen at random from the first 100 positive integers. Find the probability that the number chosen is prime.

Mathematics
2 answers:
yaroslaw [1]3 years ago
7 0
<h2>Answer:</h2>

The probability that the number chosen is prime is:

                     \dfrac{1}{4}

<h2>Step-by-step explanation:</h2>

The probability of an event is defined as the ratio of number of favorable outcome to the total number of outcomes.

Here the total number of outcomes are: 100

( Since we have to take first 100 positive integers i.e. 1-100)

Also, the number of favorable outcomes i.e.  the number of prime numbers between 1-100 is: 25

( Since, the prime numbers are:

2,3,5,7,11,13,17,19,23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, and 97 )

Hence, the probability that the number chosen is prime is:

Probability=\dfrac{25}{100}\\\\\\Probability=\dfrac{1}{4}

Ksenya-84 [330]3 years ago
5 0

Answer: The answer is B). 1/4

Step-by-step explanation:

You might be interested in
The Midpoint of AB dkdldl
Nutka1998 [239]
  • The Midpoint of AB is (1,0).

Given that:

  • In line AB, where the coordinates of A is (3,1) and coordinates of B is (-1,-1).

To find:

  • The Midpoint of line AB.

So, according the question

We know that,

The midpoint M of a line segment AB with endpoints A (x₁, y₁) and B (x₂, y₂) has the coordinates M ( \frac{x_1 + x_2}{2} , \frac{y_1 + y_2}{2} ).

Now from question,

We know that the the coordinates of A is (3,1) and coordinates of B is (-1,-1) of line AB.

So, we can say that

   A is (3,1) or x₁ = 3 and y₁ = 1.

   B (-1,-1) or x₂ = -1 and y₂ = -1.

∵ The coordinates of midpoint M (X,Y)

          X = \frac{x_1 + x_2}{2}

              = \frac{3-1}{2}

              = 2/2

          X = 1.

And

          Y = \frac{y_1 + y_2}{2}

              = \frac{1-1}{2}

              = 0/2

          Y = 0.

So, the midpoint of line AB is M (1,0)

To learn more about Midpoint of line, please click on the link;

brainly.com/question/14687140

#SPJ1

8 0
2 years ago
Gran knitted many wash clothes for the school fundraiser. She sold 42 cloths at the sale. There were 11 washcloths left after th
defon

Answer:

53

Step-by-step explanation:

c=42+11

c=53

5 0
3 years ago
Jordon is looking for a job. She found one job that gave a $100 bonus plus paid $25 per hour. Another job gave no
maria [59]
It would be 20 hrs because if you put them both in an equation aka y=25x+100 and y=30x just plug in numbers into the x until they both have the answer which in this case is 20
5 0
3 years ago
Read 2 more answers
The original price of a computer is $489.00. it is discounted 30%. find the selling price ​
Yanka [14]

Answer:

$342.30

Step-by-step explanation:

The original price of the computer is $489. The computer is discounted 30%, which means that 30% of the price is removed from the original price.

30% of 489 is

489 * 0.3 which is $146.7

146.7 is the discounted amount, not the selling price. To find the selling price, subtract how much is discounted ( 146.7) from the original price (489).

489-146.7= 342.3

3 0
2 years ago
Inverse of f(x)=-5x+15
Otrada [13]

f(x) = -5x - 15


Let y = f(x)


y = -5x - 15


Switch the x and y places, and solve for y:


x = -5y - 15


-5y = x + 15


y = (x + 15)/-5


y = -(x/5) - 3


So the inverse of : f(x) = -5x - 15 is


-x/5 - 3

5 0
4 years ago
Other questions:
  • I need some help with this!
    6·1 answer
  • Which of the following is a solution to this inequality?
    9·1 answer
  • Specifications for a part for a DVD player state that the part should weigh between 24 and 25 ounces. The process that produces
    12·1 answer
  • 4.
    8·1 answer
  • Which function represents the data
    5·2 answers
  • julio says if you subtract 15 from my number and multiply the difference by -7, the result is -42 what is julio number
    12·2 answers
  • Can you please help me
    9·1 answer
  • What is the area?Please i need help
    10·1 answer
  • A box contains plain pencils and 7 pens. A second box contains 6 colored pencils and 2 crayons. One item from each box is chosen
    8·2 answers
  • Numbers that equal to 39
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!