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
puteri [66]
3 years ago
6

Suppose that two cards are randomly selected from a standard​ 52-card deck. ​(a) what is the probability that the first card is

a spadespade and the second card is a spadespade if the sampling is done without​ replacement? ​(b) what is the probability that the first card is a spadespade and the second card is a spadespade if the sampling is done with​ replacement?
Mathematics
1 answer:
Savatey [412]3 years ago
8 0
(a) without replacement:
P(S)=13/52=1/4
P(SS)=(1/4)*(12/51)=1/17
Probability of selecting two spades without replacement is 1/17.

(b) with replacement
P(S)=13/52=1/4
P(SS)=(1/4)(13/52)=1/16
Probability of selecting two spades with replacement is 1/16.
You might be interested in
Jeff weighed 190 pounds and lost 1/4 pound each week. Allan weighed 127 pounds and gained 5/8 pound each week. After how many we
STatiana [176]

Answer:

oh i did this let me find my book

5 0
4 years ago
5) What is the pressure of a 3 moles of oxygen in a 5 liter container at 300
blondinia [14]

Answer:

1496.52 Pa, 14.76 atm

Step-by-step explanation:

This question can be solved using ideal gas law

according to which

pv = nrt

where p is the pressure of gas

v is volume of gas

n is amount gas in moles

R is ideal gas constant whose value is 8.314 J/mol

T is absolute temperature of gas on Kelvin scale

______________________________

given

v = 5 liter

n = 3

T = 300 kelvin

R = 8.314 J/mol

Let the pressure be p

Substituting the above value in ideal gas law equation we have

p*5 = 3*8.314*300

p = 7482.6/5 = 1496.52 Pa

This pressure is in pascal while option is in atm

we know 1 Pascal is equal to 0.0000098692 atm

we know that 1 Atm = 101325 Pa

thus, 1496.52 is equal to  0.0000098692*1496.52 atm

1496.52 is equal to 14.76 atm

7 0
3 years ago
There are 18 pencils for $2.36 how much would it be for one
stira [4]

Answer:

13 cents

Step-by-step explanation:

2.36/18= 0.13

5 0
3 years ago
Convert a 0.9% glucose solution to a g/100ml
Eduardwww [97]
<span>0.9% glucose solution means there are 0.9 g of glucose per 100 mL water.
</span><span> The concentration is required per litre for molar concentration:
0.9% glucose solution contains 9 g of glucose per 1000 mL or 1 L of water.
Molar mass of glucose is 180.16 g mol^-1 so 9 g = 9g/180.16 g mol^-1 = 0.05 moles
</span><span> 1 L of water contains 0.05 moles of glucose so molar concentration is 0.05 M or 0.05 mol/L </span>
6 0
4 years ago
Solve:<br> n/2 - 10=6<br> show your work please
olganol [36]

Answer:

n=36

Step-by-step explanation:

36 divided by 2 is 16 then subtract 10 and you will get 6 hope this helps

4 0
3 years ago
Read 2 more answers
Other questions:
  • How do you find the distance from a point on a graph to another point, when it is not a straight line?
    5·1 answer
  • What do the following two equations represent? 4x-2y=-5 and -2x+3y=-3
    7·2 answers
  • One and one over seventh times three fifths
    15·1 answer
  • The table shows the temperatures at noon and 8:00 pm for two locations.
    5·2 answers
  • Line segment AB has endpoints A(1, 2) and B(5, 3). Find the coordinates of the point that divides the line segment directed from
    10·2 answers
  • HELP AND ILL LOBE U FORVEER
    13·2 answers
  • Alyssa invested $180 in an account paying an interest rate of 8 and 3/8 % compounded annually. Lily invested $180 in an account
    9·1 answer
  • Help me to do this question plz plz plz <br>I will make you as brainlist plz​
    8·1 answer
  • Suppose that Y varies directly with X, and Y = 4 when X = 16
    7·1 answer
  • Work out 19% of 394.22​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!