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
Harlamova29_29 [7]
3 years ago
8

Two cards are drawn without replacement from a standard deck of 52 playing cards. What is the probability of choosing a red card

for the second card drawn, if the first card, drawn without replacement, was a diamond? Express your answer as a fraction or a decimal number rounded to four decimal places.
Mathematics
1 answer:
joja [24]3 years ago
7 0

Answer: \dfrac{3}{51}

Step-by-step explanation:

Given : The total number of cards in a deck = 52

Number of red cards = 26

There are two types of red  cards : diamond and heart.

Number of diamond cards = 13

The probability that the first card is a diamond :-

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

Since diamond is also a red card.

Now, the total cards left = 51

The number of red cards left = 12

The probability that the second card is a red card (without repetition) is given by :-

\dfrac{12}{51}

Now, the probability of choosing a red card for the second card drawn, if the first card, drawn without replacement, was a diamond :-

\dfrac{1}{4}\times\dfrac{12}{51}=\dfrac{3}{51}

You might be interested in
HELP MEEEEEEEEE plz​
Diano4ka-milaya [45]

Answer:

15

Step-by-step explanation:

Red : Blue :

3        8

We have 40 blue marbles

Multiply 8 by what to get 40

40/8 =5

So we need to multiply by 5

Red : Blue :

3*5      8*5

15         40

There are 15 red marbles

8 0
3 years ago
Read 2 more answers
6.) the following function represents the profit P(n) in dollars that a concert promoter makes by selling tickets for n dollars
marissa [1.9K]
For Part A, what to do first is to equate the given equation to zero in order to find your x intercepts (zeroes)

0=-250n^2+3,250n-9,000 after factoring out, we get

-250(n-4)(n-9) and these are your zero values.

For Part B, you need to square the function from the general equation Ax^2+Bx+C=0. So to do that, we use the equated form of the equation 0=-250n^2+3,250n-9,000 and in order to have a positive value of 250n^2, we divide both sides by -1

250n^2-3,250n+9,000=0

to simplify, we divide it by 250 to get n^2-13n+36=0 or n^2-13n = -36 (this form is easier in order to complete the square, ax^2+bx=c)

in squaring, we need to apply <span><span><span>(<span>b/2</span>)^2 to both sides where our b is -13 so,
(-13/2)^2 is 169/4

so the equation now becomes n^2-13n+169/4 = 25/4 or to simplify, we apply the concept of a perfect square binomial, so the equation turns out like this 

(n-13/2)^2 = 25/4 then to find the value of n, we apply the square root to both sides to obtain n-13/2 = 5/2 and n is 9. This gives us the confirmation from Part A. 

For Part C, since the function is a binomial so the graph is a parabola. The axis of symmetry would be x=5.

</span></span></span>
7 0
3 years ago
‼️Someone Please help Me the graph is in the picture ‼️ Will make brainliest
baherus [9]

Answer:

32

Step-by-step explanation:

The equation V=-32t+256 and the graph below describe the velocity V in feet per second of a ball <em>t</em> seconds after it is shot into the air.

To find the balls velocity after seven seconds, substitute t = 7 into the function expression:

V(7)=-32\cdot 7+256\\ \\=-224+256\\ \\=32\ ft/sec

6 0
3 years ago
Add these two expressions. (–45t + 53s) and (–3 – 75s + 2t) 65t + 415s – 3 –145t – 115s – 3 –115t + 113s – 3 115t – 415s + 2
serious [3.7K]

Answer:

- 43t - 22s - 3

Step-by-step explanation:

(–45t + 53s) + (–3 – 75s + 2t)

Opening the brackets

-45t + 53s -3 - 75s + 2t

Collecting like terms

-45t + 2t + 53s - 75s -3

Simplify the expression

-43t -22s - 3

4 0
2 years ago
The value of y varies directly with x and y=12 when x=-6 find y when x=-4
FinnZ [79.3K]

Answer:

B)8

Step-by-step explanation:

That is the right answer because when y=12,  x=-6

12/-6 = -2

This means that x = y/-2

or y = x * -2

-4 * -2 = 8

Hope I helped

8 0
2 years ago
Other questions:
  • A circular plate has a diameter of 16 inches. What is the area
    7·1 answer
  • B. Who spent more of their allowance on pizza? Write an inequality to compare the portion spent on pizza
    15·1 answer
  • How many elements are in the set {A,B,C}?
    11·2 answers
  • Determine if the number is written in scientific notation. If not explain.
    15·2 answers
  • Here is a floor a plan house . Approximate length of the wall are given , what is the approximate area of the home, including th
    12·1 answer
  • CAN SOMEONE PLEASE CHECK MY ANSWER!!
    7·1 answer
  • Help me!!!!!!!!!plzzz​
    10·2 answers
  • Solve for x please help me
    15·1 answer
  • Y-5=1/2(x-2) slope intercept form
    14·1 answer
  • Paula has buttons. she gives away 28 buttons. choose the expression that shows the number of buttons paula has left.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!