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
Setler79 [48]
3 years ago
9

A bag contains 6 red balls and 7 green balls. You plan to select 2 balls at random. Determine the probability of selecting 2 gre

en bal
The problem is to be done without replacement. Use combinations to determine the probability.
Mathematics
1 answer:
jeka57 [31]3 years ago
7 0

Answer:

Step-by-step explanation:

answer:13

You might be interested in
Find the indefinite integral. (Remember to use absolute values where appropriate. Use C for the constant of integration.) dx x(l
Pepsi [2]

I'm assuming the integral is

\displaystyle \int \frac{dx}{x (\ln(x^2))^5}

We have

\ln(x^2) = 2 \ln|x| \implies (\ln(x^2))^5 = 32 (\ln|x|)^5

Then substituting y=\ln|x| and dy=\frac{dx}x, the integral transforms and reduces to

\displaystyle \int \frac{dx}{x(\ln(x^2))^5} = \frac1{32} \int \frac{dy}{y^5} \\\\ ~~~~~~~~ = \frac1{32} \left(-\frac1{4y^4}\right) + C \\\\ ~~~~~~~~ = -\frac1{128(\ln|x|)^4} + C

which we can rewrite as

128 (\ln|x|)^4 = 8\cdot2^4(\ln|x|)^4 = 8 (2\ln|x|)^4 = 8 (\ln(x^2))^4

and so

\displaystyle \int \frac{dx}{x (\ln(x^2))^5} = \boxed{-\frac1{8(\ln(x^2))^4} + C}

7 0
2 years ago
Simplify (-5) + (-2) - (-7) - (+9)
Alecsey [184]
-5-2+7-9 = -9

- and - make a plus :)
3 0
3 years ago
Find a quadratic equation with roots -1, 4i and -1 - 4i
vazorg [7]
\bf \textit{difference of squares}
\\\\
(a-b)(a+b) = a^2-b^2\qquad \qquad 
a^2-b^2 = (a-b)(a+b)
\\\\\\
\textit{also recall that }i^2=-1\\\\
-------------------------------\\\\
\begin{cases}
x=-1+4i\implies &x+1-4i=0\\
x=-1-4i\implies &x+1+4i=0
\end{cases}
\\\\\\
(x+1-4i)(x+1+4i)=\stackrel{y}{0}
\\\\\\\
[(x+1)~~-~~(4i)][(x+1)~~+~~(4i)]=y
\\\\\\\
[(x+1)^2~~-~~(4i)^2]=0\implies (x^2+2x+1)~-~(4^2i^2)=y
\\\\\\
(x^2+2x+1)~-~(16\cdot -1)=y\implies (x^2+2x+1)~-~(-16)=y
\\\\\\
x^2+2x+1~~+16=y\implies x^2+2x+17=y
3 0
3 years ago
Find ? (inscribed angle)
Lera25 [3.4K]

9514 1404 393

Answer:

  107°

Step-by-step explanation:

Opposite angles of an inscribed quadrilateral are supplementary.

  X = 180° -Q

  X = 180° -73° = 107°

3 0
3 years ago
Add<br><br> -3/8 + 5/4<br><br> Simplify your answer. Type a fraction or an interger.
sdas [7]
Beautiful your answer is 7/8
7 0
3 years ago
Read 2 more answers
Other questions:
  • You construct a​ 95% confidence interval for a population mean using a random sample. the confidence interval is 24.9less thanmu
    7·1 answer
  • Is 1/2 or 0.54 greater?
    11·2 answers
  • (03.02) Bill lent some money to his two brothers. He wrote down the amounts so he would not forget. The list shows the younger b
    10·2 answers
  • Mary can make a costume twice as fast as Sam can can. If they both work together, they can make it in 6 hours. How long will it
    13·1 answer
  • Please i need help as soon asap y - 95 = 2(x - 35)
    13·1 answer
  • How many different four-digit numbers can be made using the digits 1, 2, 3, 4, 5, 6 if no digit can be used more than once?
    10·1 answer
  • Sarah wants to give the pizza delivery boy a 20 percent tip. If the pizza bill is $48.25, how much should she tip?
    14·2 answers
  • Can y’all help me on this I just don’t understand it’s find su and m is the midpoint
    5·1 answer
  • 12 POINTS--Geometry
    5·1 answer
  • Find the area of the large and small rectangles :,))
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!