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
seraphim [82]
4 years ago
10

4 red balls 4 white balls what is the probability of drawing at least 1 red ball if two balls are drawn

Mathematics
1 answer:
vodomira [7]4 years ago
7 0
The probability of drawing exactly one red ball is given by:
P(1\ red\ ball)=\frac{4C1\times4C1}{8C2}=\frac{16}{28}
the probability of drawing two red balls is given by:
P(2\ red\ balls)=\frac{4C2\times4C0}{8C2}=\frac{6}{28}
The probability of drawing at least one red ball is:
P(1 red ball) + P(2 red balls) = 16/28 + 6/28 = 11/14.
 The answer is \ \frac{11}{14}

You might be interested in
The volume of the cone shown is 5 cubic inches. What is the height of a cone with the same base diameter but a volume of 10 cubi
Alisiya [41]

Answer:

The height of the big cone is double the one in the small cone

h2 = 2h1

Step-by-step explanation:

Given that:

  • The volume of the small cone: 5 cubic inches
  • The volume of the big cone: 10 cubic inches

As we know, the volume of a cone is as following:

V = (1/3)*area of the base*height

If the base diameter are unchanged => area of the base of the two cones are  unchanged and from the given information, the volume of the big cone is double the volume of the small cone. So the height of the big cone is double the one in the small cone

<=> h2 = 2h1

3 0
3 years ago
Find all solutions for a triangle with c=70 c=24 and a=25
Slav-nsk [51]

Answer:

see the attachments for the two solutions

Step-by-step explanation:

When the given angle is opposite the shorter of the given sides, there will generally be two solutions. The exception is the case where the triangle is a right triangle (the ratio of the given sides is equal to the sine of the given angle). If the given angle is opposite the longer of the given sides, there is only one solution.

When a side and its opposite angle are given, as here, the law of sines can be used to solve the triangle(s). When the given angle is included between two given sides, the law of cosines can be used to solve the (one) triangle.

___

Here, the law of sines can be used to solve the triangle:

A = arcsin(a/c·sin(C)) = arcsin(25/24·sin(70°)) = 78.19° or 101.81°

B = 180° -70° -A = 31.81° or 8.19°

b = 24·sin(B)/sin(70°) = 13.46 or 3.64

5 0
3 years ago
Read 2 more answers
Solve question 25 please and explain...
laila [671]
First, you would add 4 to 4 and get 8.
Then, you would set up the proportion 8/52.
Simplify this proportion, which equals 2/13.

There is a 2 in 13 chance to draw a card that is a king or a queen from the deck.
8 0
3 years ago
I need all three answers again please help
choli [55]

Answer:

Step-by-step explanation:

3) Sales tax rate = \frac{42.42}{499}*100

                         = 8.50

                        = 9%

4) Rate of commission = \frac{1400}{28000}*100

                                     = 5 %

5) Reduction = \frac{30}{100}*5000

                    =$ 1500

New price = 5000 - 1500

               = $ 3500

8 0
2 years ago
4(2x + 3) ÷ 5y
Murrr4er [49]
I won’t give a actual answer to the equation, because I want you and anyone else to learn it. but I do want to help!

the sum is the answer to a addition problem. that means you should choose anything that falls under that.

The term is anything that is being separated by + or - so for this, choose anything like that.

The product is the final answer to a multiplication problem.

Factor- any number leading up to a answer in a problem. Example: 3 times 4 is 12. The 3 and the 4 are the factors.

Quotient- the final answer to a division problem.

Coefficient- the number separated from the rest of the problem or the number at the beginning of the problem that stands alone. Because this one is a bit harder to explain, I’ll go ahead and tell you it is 4.

Variable- the unknown number such as y or x.




I hope this helps, and good luck!! :)
8 0
2 years ago
Other questions:
  • Aaliyah practices clarinet a total of 11.25 hours in d days. She practices the same amount of time each day. How many hours does
    8·1 answer
  • There were 3 fireworks shows last year. There were 3098 people at the first show, 5922 people at the second show, and 7024 peopl
    11·2 answers
  • Match the verbal expression to its correct algebraic expression. Five more than the square of a number Five more than twice a nu
    12·1 answer
  • A tree stands 22 feet tall and is 382 feet from a building. The tree casts a shadow that is 40 feet long. How tall is the buildi
    8·1 answer
  • Convert 12 inches to millimeters (to the nearest tenth).
    9·2 answers
  • Last year there were 145 pies baked for the bake sale this year k pies baked using k write a expression for the total number of
    14·1 answer
  • What is the value of x?
    11·2 answers
  • If the sum of the interior angles of a polygon is 1800 how many sides does it have?
    14·2 answers
  • I have 2 questions 1.Matt needs to buy 13 cases of oil. Each case contains 24 bottles. How many bottles of oil will Matt have?
    10·1 answer
  • Determine the slope
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!