Simplify the expression 5^3 + 3(5 − 3).

Suppose you just purchased a digital music player and have put 15 tracks on it. After listening to them you decide that you like

blsea [12.9K]

Answer:

Total songs = 15

Liked songs = 3

Un liked songs = 15-3=12

Find the probability that among the first two songs played

(a) You like both of them.

Probability that among the first two songs played you like both of them = $\frac{3}{15} \times \frac{2}{14} = 0.029$

(b) You like neither of them.

Probability that among the first two songs played you like neither of them = $\frac{12}{15} \times \frac{11}{14} = 0.629$

(c) You like exactly one of them.

Probability that among the first two songs played you like exactly one of them = $\frac{3}{15} \times \frac{12}{14}+ \frac{12}{15} \times \frac{3}{14}= 0.343$

(d) Redo (a)-(c) if a song can be replayed before all

(a) You like both of them. Would this be unusual?

Probability that among the first two songs played you like both of them = $\frac{3}{15} \times \frac{3}{15} = 0.04$

(b) You like neither of them.

Probability that among the first two songs played you like neither of them = $\frac{12}{15} \times \frac{12}{15} = 0.64$

(c) You like exactly one of them.

Probability that among the first two songs played you like exactly one of them = $\frac{3}{15} \times \frac{12}{15}+ \frac{12}{15} \times \frac{3}{15}= 0.32$

7 0

4 years ago

A company president randomly selects 5 employees to complete a survey. There are 50 employees in the company. In how many differ

Gre4nikov [31]

Answer:

254,251,200

Step-by-step explanation:

This is a combination question, since the order doesn't matter, the formula for combinations is n!/(n-r)! n is the amount of things we can choose from but r is the amount of things (employees in this case) we actually select. n = 50 and r = 5. This we get 50!/(50-5)! or 50!/45!, using a calculator, we can find that 50!/45! is equal to 254,251,200. That is our final answer for the amount of combinations available.

8 0

3 years ago

What is the slope of the graphed line

lianna [129]

Answer:

3/9 or 1/3 is the slope

Step-by-step explanation:

yeah

6 0

3 years ago

A resort hotel offers two weekend specials.

katen-ka-za [31]

Answer:

$44 per 1 meal

Step-by-step explanation:

7 0

3 years ago

Can someone please please help me

Karolina [17]

Answer:

for plan B 5 1/4 above the ground would be your answer hope this helps :D

6 0

3 years ago

Simplify the expression 5^3 + 3(5 − 3).​

Simplify the expression 5^3 + 3(5 − 3).