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3 years ago

Which is equal to 5^4 • 5^8?

Mathematics

1 answer:

jolli1 [7]3 years ago

7 0

5^12 because 8+4=12 and 12 would be the new number

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during a particular period a university's information technology office received 20 service orders for problems with printers, o

stira [4]

Answer:

0.2384 = 23.84% probability that 3 were laser printers.

Step-by-step explanation:

The printers will be chosen without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x sucesses is given by the following formula:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

In which:

x is the number of sucesses.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

In this question:

20 orders means that $N = 8$

8 were laser printers, which means that $k = 8$

Sample of 5 means that $n = 5$

What is the probability that 3 were laser printers?

This is P(X = 3).

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

$P(X = 3) = h(3,20,5,8) = \frac{C_{8,3}*C_{12,2}}{C_{20,5}} = 0.2384$

0.2384 = 23.84% probability that 3 were laser printers.

4 0

3 years ago

Corrine has 4.2 pounds of trail mix to divide into 14 bags. How many pounds of trail mix will go in each bag? Each bag of trail

ss7ja [257]

Answer:

0.3 lbs

Step-by-step explanation:

4.2/14 = 0.3 lbs of trail mix in each bag

3 0

3 years ago

Read 2 more answers

plz help me now plz: A cable 65 meters long is cut into two pieces so that one piece is 18 meters longer than the other. Find th

GalinKa [24]

Answer:

One piece is 23.5

the other is 41.5

Step-by-step explanation:

first subtract 18 from 65 that will give you 47. Then 47÷2= 23.5. this is the length of the shorter piece. since one piece is 18 m longer then the other, add 18 to 23.5. that will give you the length of the longer piece. You can check your work by adding 23.5 and 41.5. They equal 65.

6 0

3 years ago

GUYS PLEASEE Im begging you I really need help!

yanalaym [24]

I think the answer is d

4 0

3 years ago

Find the maximum and minimum number values of the function

Dmitriy789 [7]

Answer:

B/ minimum 6; maximum 10

Step-by-step explanation:

6 ≤ x ≤ 10

x is greater than or equal to 6 but less than or equal to 10.

I hope this helps! May I have brainliest? :)

3 0

3 years ago