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
mote1985 [20]
3 years ago
10

A disc jockey wants to select 4 songs from a new cd that contains 12 songs. How many ways can the disc jockey choose four songs?

Mathematics
2 answers:
WARRIOR [948]3 years ago
7 0

I suppose a DJ wants to select 4 different songs, then there are: 12*11*10*9 = 11880 ways to choose them.

If the order of the songs he plays doesn't matter, there are: \frac{12 * 11 * 10 *9 }{4!} = 495 ways to choose them.

Burka [1]3 years ago
6 0

Answer:

The answer is NOT 495 WAYS (for when choosing 5) !!!! The CORRECT answer is 792!!!!!

>>>495 may be the answer "when choosing (four)"

UPDATE: This is the answer for when "choosing FIVE" not FOUR.

You might be interested in
Question 21 is probably the hardest question on this homework
Snezhnost [94]
-15+5x= 20

5x= 35
x= 7

20= -15+5x

35= 5x

7 = x
7 0
3 years ago
Read 2 more answers
Need help don’t understand
sineoko [7]

The weight is proportional to the price. So if 10lb cost $18.24, quarter as much (2.5lb) would cost four times less($18.24÷4=$4.56).

7 0
3 years ago
Marty started a lawn mowing business. He kept track of his expenses and earnings in a table.
kolezko [41]
40+35.5 = 75.5
49.99 + 8.79 = 58.78
$16.72 profit


8 0
3 years ago
Read 2 more answers
At a production process, the produced items are tested for defects. A defective unit is classified as such with probability 0.9,
Snezhnost [94]

Answer:

We use Baye's theorem:  P(A)P(B|A) = P(B)P(A|B)

with (A) being defective and

(B) marked as defective

we have to find P(B) = P(A).P(B|A) + P(¬A)P(B|¬A). .......eq(2)

Since  P(A) = 0.1 and P(B|A)=0.9,

P(¬A) = 1 - P(A) = 1 - 0.1 = 0.9

and

P(B|A¬) = 1 - P(¬B|¬A) = 1 - 0.85 = 0.15

put these values in eq(2)

P(B) = (0.1 × 0.9) + (0.9 × 0.15)

       = 0.225 put this in eq(1) and solve for P(B)

P(B) = 0.4

6 0
3 years ago
If f(x) = 6x-4 what is the value of f(8)
Vinvika [58]

Answer:

f(8) = 44

Step-by-step explanation:

f(x) = 6x-4

Let x = 8

f(8) = 6(8) - 4

Multiply

     = 48 -4

    = 44

8 0
3 years ago
Read 2 more answers
Other questions:
  • Have a wonderful day lvu&lt;3 free points <br> 1357+46689=?
    7·2 answers
  • Which statement shows how two polynomials 4x2 and x2 + 3x + 7 demonstrate the closure property when multiplied?
    14·1 answer
  • A rectangular swimming pool measures 14 feet by 30 feet. The pool is
    11·1 answer
  • I just need someone to check my answer.
    14·1 answer
  • Jerry has two same size circles divided into same number of equal parts. One circle has has 3/4 of the parts shaded and the othe
    11·1 answer
  • What is the sticker price?
    8·1 answer
  • Find Ms. Buggie's mistake in the following problem. Then, give what the correct answer should be.
    8·1 answer
  • Omg pls help its proving the sum of the interior angle measures of a triangle is 180
    13·2 answers
  • X -y = 3<br><br><br> solve for y
    12·2 answers
  • Write 2 / 3 of 4 as a mixed number. ​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!