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
Mice21 [21]
2 years ago
11

A box contains four red, three blue, and six green lenses. two lenses are randomly selected from the box. find the probability o

f getting two red lenses when two are selected if the first selection is not replaced before the second selection is made
Mathematics
1 answer:
andrew-mc [135]2 years ago
6 0

The probability of getting two red lenses when two are selected will be 2/13.

<h3>What is probability?</h3>

The probability of favorable events to the total number of occurrences.

A box contains four red, three blue, and six green lenses.

Two lenses are randomly selected from the box.

Then the probability of getting two red lenses when two are selected if the first selection is not replaced before the second selection is made will be

The total number of the event will be

Total event = ¹³C₂

Total event = 78

Then the favorable event will be

Favorable event = ⁴C₁ x ³C₁

Favorable event = 4 x 3 = 12

Then we have

P = 12 / 78

P = 2/13

More about the probability link is given below.

brainly.com/question/795909

#SPJ1

You might be interested in
One inlet pipe can fill an empty pool in 12 hours, and a drain can empty the pool in 20 hours. How long will it take the pipe to
Andrei [34K]
<span>30 hours For this problem, going to assume that the actual flow rate for both pipes is constant for the entire duration of either filling or emptying the pool. The pipe to fill the pool I'll consider to have a value of 1/12 while the drain that empties the pool will have a value of 1/20. With those values, the equation that expresses how many hour it will take to fill the pool while the drain is open becomes: X(1/12 - 1/20) = 1 Now solve for X X(5/60 - 3/60) = 1 X(2/60) = 1 X(1/30) = 1 X/30 = 1 X = 30 To check the answer, let's see how much water would have been added over 30 hours. 30/12 = 2.5 So 2 and a half pools worth of water would have been added. Now how much would be removed? 30/20 = 1.5 And 1 and half pools worth would have been removed. So the amount left in the pool is 2.5 - 1.5 = 1 And that's exactly the amount needed.</span>
6 0
3 years ago
What dose valuable mean
Otrada [13]
The real definition is worth a large deal of money so A
4 0
3 years ago
Read 2 more answers
Help me with mathhh?!!!!??? ​
DedPeter [7]

Answer:

x = 1 1/4

Step-by-step explanation:

sqrt( 7x+2) = sqrt(3x+7)

Square each side

(sqrt( 7x+2))^2 = (sqrt(3x+7))^2

7x+2 = 3x+7

Subtract 3x from each side

7x-3x +2 = 3x+7-3x

4x+2 = 7

Subtract 2 from each side

4x+2-2 = 7-2

4x = 5

Divide by 4

4x/4 = 5/4

x = 1 1/4

Check for extraneous solution

sqrt( 7*5/4+2) = sqrt(3*5/4+7)

sqrt( 35/4 + 8/4) = sqrt(15/4+28/4)

sqrt( 43/4) = sqrt(43/4)

Solution is valid

3 0
3 years ago
What's an expression that represents 5 less than the product of 7 and a number?
Butoxors [25]

Answer:

7x-5

Step-by-step explanation:

7 0
3 years ago
Which is an equation of the line that
Alex Ar [27]
Answer; D) y=-3x+13
4 0
3 years ago
Other questions:
  • Explain how to find the absolute value of an interger
    15·1 answer
  • This is the question that I need help with.​
    14·1 answer
  • A street light bulb is fixed on a pole 6m above the level of the street. If a women of height 1.5m casts a shadow of 3m, find ho
    10·1 answer
  • Help me in this two pls
    7·1 answer
  • Find the LCM of 91, 143 and 169​
    14·2 answers
  • ILL MARK U BRAINLEST Find the circumference of the circle. Use 3.14 for 1. Round to the nearest hundredth, if necessary.
    6·2 answers
  • What is the value of the expression (1/6)^-1? Write your answer as simplified as possible.
    9·1 answer
  • What is the quotient of 2,556 and 12? *
    14·1 answer
  • Background info-A rabbit started at point 0 and made 3 jumps: a jump of 4 units, then a jump of 2 units, and then a jump of 1 un
    5·1 answer
  • Alex has six candy bars he wants to cut into fifths. How many 1/5 size pieces will he have
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!