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Readme [11.4K]
3 years ago
8

A 12-volume numbered set of books is placed randomly on a shelf. What is the probability that the books will be numbered in the

correct order from left to right?
Mathematics
1 answer:
spayn [35]3 years ago
5 0

Answer:

Step-by-step explanation:

There is a 1/12 probability that volume 1 will be correctly put in position 1.  

If we assume that volume 1 is right, then since there are then only 11 books left to choose from, there is then a 1/11 prob that volume 2 will be in position 2.  And so on. By the same reasoning there is 1/10 prob that volume 3 is then right, 1/9 prob for volume 4, 1/8 prob for volume 5, and 1/7 prob for volume 6,

and 1/6 prob for volume 7,and 1/5 prob for volume 8,and 1/4 prob for volume 9,and 1/3 prob for volume 10,and 1/2 prob for volume 11,and 1/1 prob for volume 12.  

So the probability is 1 /(12*11*10*9*8*7*6*5*4*3*2*1) = 1 / 479,001,600 ....

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U can do tallies.. Its like little lines..That add up to 30.
8 0
3 years ago
Pls help me with my math
sergiy2304 [10]

Answer:

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Step-by-step explanation:

5 0
3 years ago
A recipe for waffles calls for 2 cups of flour and 3 teaspoons of baking powder. If Jason uses 4 cups of flour, how much baking
Allisa [31]


it is D. 6 tsp.

because cause we know that 2 × 2=4

So we multiply 3 ×2=6

Because we know he is doubling the recipe

the answer is D. 6 tsp. of baking powder

hope it help

8 0
3 years ago
Read 2 more answers
If 2 sides of a triangle are 6 and 16, what is the range of the possible lengths of the third side?
Leno4ka [110]

Answer:

between 10 and 22

Step-by-step explanation:

A side of a triangle must measure between the difference of the lengths of the other two sides and the sum of the lengths of the other two sides.

Difference: 16 - 6 = 10

Sum: 6 + 16 = 22

Answer: between 10 and 22

6 0
3 years ago
My daughter is having a hard time trying to figure this problem.
Natalija [7]

Hey there! :-)

First, let's find the slope of the line.

We can do that by using this formula:

Slope=Rise/Run

Where

Rise=how many units we move up

Run=how many units we move left or right.

We move 5 units up and 8 units to the right.

Therefore, the slope is 5/8.

The y-intercept (where the line touches the graph) is -9/8.=

Therefore, the equation of the line is y=5/8x-9/8.

Hope this helps you daughter. Use the comment section to clarify any doubts.

Answered by

~A felicitous teen who helps others with a smile on her face

Good luck.

6 0
2 years ago
Read 2 more answers
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