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
nikdorinn [45]
3 years ago
13

Nico owns 11 instructional piano books. Two are beginner books, six are intermediate books, and three are advanced books. If two

books are randomly chosen from the collection, one at a time, and replaced after each pick, what is the probability that he first chooses an advanced book and then chooses a beginner book?
Mathematics
1 answer:
Solnce55 [7]3 years ago
8 0
2 beginner, 6 intermediate, 3 advanced...total of 11

P(advanced) = 3/11
replaced
P(beginner) = 2/11

P(both) = 3/11 * 2/11 = 6/121 <=
You might be interested in
I need answers to this
devlian [24]

1 . 489

2. 3

3. 4.9

4. 28.5

5. 6.15

6. 22100

7.  25400

8.  0.5

9. 0.14

10. 0.973

5 0
3 years ago
CHECK PROFILE QUESTIONS ALOT OF 20 POINT QUESTIONS HURRRRRYYYYYY!!!!!!!!!!!!
Veseljchak [2.6K]

Answer:

9(x)-20(y)

Step-by-step explanation:

a regular polygon has 6 wall then it matters that the 54 walls

4 0
3 years ago
At noon, ship A is 170 km west of ship B. Ship A is sailing east at 35 km/h and ship B is sailing north at 20 km/h. How fast is
garik1379 [7]
Check the picture below.

now, keep in mind that ship B is going at 20kph, thus from noon to 4pm, is 4 hours, so it has travelled by then 20 * 4 or 80 kilometers, thus b = 80.

whilst the ship B is moving north, the distance "a" is not really changing, and thus is a constant, that matters because the derivative of a constant is 0.

\bf c^2=a^2+b^2\implies \stackrel{chain~rule}{2c\cfrac{dc}{dt}}=0+2b\cfrac{db}{dt}\implies \cfrac{dc}{dt}=\cfrac{b\frac{db}{dt}}{c}&#10;\\\\\\&#10;\begin{cases}&#10;\frac{db}{dt}=20\\&#10;c=10\sqrt{353}\\&#10;b=80&#10;\end{cases}\implies \cfrac{dc}{dt}=\cfrac{80\cdot 20}{10\sqrt{353}}\implies \cfrac{dc}{dt}=\cfrac{160}{\sqrt{353}}&#10;\\\\\\&#10;\textit{and rationalizing the denominator}\implies \cfrac{160\sqrt{353}}{353}

8 0
3 years ago
In 1979 the Wincom river was 33 feet below the bridge. Because of silt build-up in the river bottom, the
MAVERICK [17]

Answer: d = 40 - 5/2t; 1995

Hope it helps :)

7 0
1 year ago
(10 points) help needed for math
Whitepunk [10]
25 and 60 as the parallel lines means they have wth same gradient
5 0
3 years ago
Other questions:
  • Marcus hikes at a rate of 2 miles per hour if he hikes for 6 1/3 hours how many will he hike
    13·2 answers
  • After it is purchased, the value of a new car decreases $4000 each year. after 3 years, the car is worth $18,000.
    9·1 answer
  • What is P(0.6 ≤ z ≤ 2.12)?
    12·2 answers
  • Simplify 81^5=3^w and find w
    13·1 answer
  • Please help with this Math Question...
    6·1 answer
  • What will be the new position of the given point (-2,7)after translation of 3 units up and 1 units left?
    14·1 answer
  • Write a story about temperatures that this expression could represent: ½ + (-¾)
    5·2 answers
  • 3. Mrs Naidoo wants to buy a new kitchen cabinet on which she can place her new
    7·1 answer
  • Mohsin purchased a 30 ounce bag of dried Turkish figs for $11.40. What is the cost per pound?
    7·2 answers
  • Find the Value of X!!! Geometry!! Pls helppp!! I will mark brainlest. Thank you!! :)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!