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
Leno4ka [110]
3 years ago
8

A 2-card hand is drawn from a standard deck of 52 cards. find the probability that the hand contains the given cards. two of the

same suit
Mathematics
1 answer:
ivann1987 [24]3 years ago
5 0
This probability is the same as 1-(two different suited cards). Your first card can be any of the 52 cards. Your second card must be any of the 39 different suited remaining 51 cards. So the answer is 1 - (52/52)(39-51). Note: I assumed there was no replacement.
You might be interested in
What is the best approximation of the projection of (5,-1) onto (2,6)?
Hatshy [7]

Answer:

Hence, the scalar projection of \vec a onto \vec b= \frac{\sqrt{10} }{5}, and  the vector projection of \vec a onto \vec b = \frac{1}{5} \hat i+\frac{3}{5} \hat j.

Step-by-step explanation:

We have given two points  (5, -1) and (2, 6).

Let,     \vec a=5\hat {i}-\hat {j}  and  \vec b= 2\hat {i}+6\hat{j} .

and we have calculate the projection of \vec a onto \vec b.

Now,

For the calculation of projection, first we need to calculate the dot product of  \vec a  and \vec b.

\vec a.\vec b=(5\hat {i}-\hat{j}).(2\hat{i}+6\hat{j})

     =10-6

     =4

then, we have to calculate the magnitude of \vec b.

   \mid {\vec {b}}\mid = \sqrt{2^{2}+6^{2}  } = \sqrt{40} = 2\sqrt{10}.

Now, the scalar projection of \vec a onto \vec b = \frac{\vec a.\vec b}{\mid b\mid}

                                                                 = \frac{4}{2\sqrt{10} }\frac{2}{\sqrt{10} } \times\frac{\sqrt{10} }{\sqrt{10} } =\frac{2\sqrt{10} }{10} = \frac{\sqrt{10} }{5}

and the vector projection of \vec a onto \vec b = \frac{\vec a. \vec b}{\mid\vec b \mid^{2} } . \vec b

                                                               = \frac{4}{40} . (2\hat i+ 6\hat j)

                                                                = \frac{1}{5} \hat i+\frac{3}{5} \hat j

Hence, the scalar projection of \vec a onto \vec b= \frac{\sqrt{10} }{5}, and  the vector projection of \vec a onto \vec b = \frac{1}{5} \hat i+\frac{3}{5} \hat j.

                                                               

6 0
3 years ago
2p x 3q x 5r maths watch
Zepler [3.9K]

Answer:

2px^ 8 qr

Step-by-step explanation:

<u>Reformatting the input : </u>

Changes made to your input should not affect the solution:

(1): "x5"   was replaced by   "x^5".  1 more similar replacement(s).

<u>STEP  1 : </u>

<em><u>Equation at the end of step 1 </u></em>

 ((2px3 • q) • x5) • r

<u>STEP  2 : </u>

<u></u>

<em><u>Final result : </u></em>

 2px8qr

<u><em>HOPE THIS HELPS!</em></u>

<u><em> PLEASE MARK BRAINLIEST IF THIS HELPED YOU LEARN! :)</em></u>

3 0
3 years ago
Read 2 more answers
Of the three forms, which one is the only form that you can find the y-intercept immediately (just by looking at the equation).
padilas [110]
The answer is A i think
5 0
3 years ago
Find the measure of x.<br> SOMEONE PLEASE HELP
svet-max [94.6K]
Answer should be 20


4x5=20
5 0
3 years ago
100 points plz help fasttt
prohojiy [21]

Answer:

Step-by-step explanation:

Complementary angles are 2 angles when added together = equal 90 * degrees.

The verticle angles theorem states angles opposite each other are the same degree*.

30* degrees is opposite angle 2 .

So angle 2 = 30* too

angle 2 and 3 together +equal 90* degree.

90 - 30 (angle 2) = 60*

Angle 3 is 60*

3 0
2 years ago
Read 2 more answers
Other questions:
  • 1. What percent of 58 is 18?
    10·1 answer
  • Assessment items What is the smallest angle of rotational symmetry that maps a regular pentagon onto itself?
    5·2 answers
  • Need help for study guide...REALLY APPRICIATED!!!
    13·1 answer
  • Pam open a bank account with $200 deposit that account had a simple interest rate of 4.6% her most recent bank statement shows a
    14·1 answer
  • Which subtraction sentences show you how to find 15-7
    9·2 answers
  • 11 divided by 0.1595
    13·2 answers
  • 848 runners entered a race. 274 more entered before
    15·2 answers
  • Use the limit definition of the derivative to find the instantaneous rate of change of
    15·1 answer
  • I will mark you brainliest if you get the correct answer first!!
    10·2 answers
  • Kyra opened a nail salon. For each manicure, Kyra charges $12. This week, Kyra has a goal of making a total of $200. Write an in
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!