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
svlad2 [7]
3 years ago
14

ou draw one card from a​ 52-card deck. Then the card is replaced in the deck and the deck is​ shuffled, and you draw again. Find

the probability of drawing a nine the first time and a heart the second time
Mathematics
1 answer:
julsineya [31]3 years ago
3 0

Answer: Our required probability is \dfrac{1}{52}

Step-by-step explanation:

Since we have given that

Number of cards in a deck = 52

Number of nines = 4

Number of hearts = 13

It is the case of replacement.

Probability of drawing a nine the first time and a hear the second time is given by

\dfrac{4}{52}\times \dfrac{13}{52}\\\\=\dfrac{1}{13}\times \dfrac{1}{4}\\\\=\dfrac{1}{52}

Hence, our required probability is \dfrac{1}{52}

You might be interested in
A baseball player comes up to bat 3 times during a league game. He either gets a hit or gets an out. How many different combinat
Stella [2.4K]

Answer:

8 different combinations are possible.

Step-by-step explanation:

Here, we have 2 different combinations for each time.

And the player comes out to bat 3 times.

So, total number of combinations are:

2^{3} i.e. a total of 8 number of times.

Let a hit is termed as 'H' and an out is termed as 'O'.

Total combinations are:

{HHH, HHO, HOH, HOO, OHH, OHO, OOH, OOO}

Kindly have a look at the tree diagram attached in the answer area.

In starting, there are 2 combinations possible, i.e. 'O' and 'H'.

After 'O' , 2 possible i.e. 'O' and 'H'.

After 'H' , 2 possible i.e. 'O' and 'H'.

and so on....

8 0
3 years ago
What is the domain and range of y=√5x-10 +3?
Andrej [43]
Domain is x # 0
A case of a polynomial
5 0
3 years ago
Read 2 more answers
In a 3 hour examination of 320 questions, there are 40 mathematics problems. if twice as much time should be allowed for each ma
xeze [42]
<span>Let the total hour of exam is 3hrs ie 180 minutes.( since answer required in minutes). Let as assume maths questions be in x minutes. Let the assume rest of the question is in y minutes. Given that out of 320 qns 40 is maths qns. therefore, maths qn is =40 and rest of qns is 280. Also given the time of maths qns is twice of rest. They related in the following equation. ie x:y=2:1 ; x/y =2/1 ie x=2y therefore 2x+y= 180 min ; ie 2(2y)+y= 180 ; y=36 therefore resolving for x = 2*36 = 72 time spent for maths qn is 2*x = 2* 72 =144min. rest of maths question is 36 min.</span>
6 0
4 years ago
An unknown number is not equal to 3.6 but rounds to 3.6 when rounded to the nearest tenth. what does the unknown number round to
son4ous [18]

The answer would be 4

6 0
2 years ago
Read 2 more answers
PLEASE HELP I REALLY NEED A GOOD GRADE
Slav-nsk [51]

Answer:

For #2 "Parallel" For #3  "Infinitely many"

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • The APR of Kylee's savings account is 5.6% and the interest is compounded quarterly. If the principal in Kylee's savings account
    11·1 answer
  • Which of the following would produce valid inferences when sampling a population?
    12·1 answer
  • What would the answer be ? Thank You!!
    9·1 answer
  • Which fraction is equal to k in the equation below? <br>1\3 / 2= k
    13·1 answer
  • Angela is making bags of trail mix for hikers Club she will ues21 ounces walnuts 11.2 ounces of almonds and 17.3 ounces of cashe
    7·1 answer
  • One line passes through the point (-8,1) and (4,4). Another line passes through points (-9,-7) and (9,-3). Are the lines paralle
    12·2 answers
  • Giving out brainliest ALL I need is to know if my answer is correct
    14·2 answers
  • Order from least to greatest -2, 5, 1, 0, -3
    13·2 answers
  • Is x = 22 a solution to this inequality?<br> x-1&lt;0<br> Type yes or no.<br> arnell
    9·2 answers
  • Solve 10 X + 8 / 2 X + 7 is equal to 4 ​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!