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3 years ago

Gimme some relaxation songs

Mathematics

2 answers:

ale4655 [162]3 years ago

7 0

Answer:

slowed songs

Step-by-step explanation:

Thank me later.

vivado [14]3 years ago

7 0

Good days slowed, trust me it’s very relaxing and soothing or tbh any slowed song

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Solve the system: y/2-x/3=8 and x/6+y/12=0<br> PLEASE NO LINKS!!!!

laiz [17]

Answer:

First: 2x-3y+-48

Second:2x+y+0

Step-by-step explanation:

I think their correct but hopefully they helped!

8 0

3 years ago

Brody works at the ticket booth at the movie theater. He sold 25 adult tickets and several child tickets during his first hour a

Angelina_Jolie [31]

Answer:

Step-by-step explanation:

25 x 12 = 300$ worth of adult tickets sold

360 - 300 = 60$ worth of child tickets sold

60/6 = 10 tickets

3 0

3 years ago

Carmen and Jen went diving to explore marine life 15ft below the waters surface. Write two integers to represent the position of

KatRina [158]

Answer:

Step-by-step explanation:

the position of the boat on the waters surface = 0 (zero)

Carmen and Jen's swimming depth. = -15

6 0

3 years ago

7) PG & E have 12 linemen working Tuesdays in Placer County. They work in groups of 8. How many

BabaBlast [244]

Part A

Since order matters, we use the nPr permutation formula

We use n = 12 and r = 8

$_{n}P_{r} = \frac{n!}{(n-r)!}\\\\_{12}P_{8} = \frac{12!}{(12-8)!}\\\\_{12}P_{8} = \frac{12!}{4!}\\\\_{12}P_{8} = \frac{12*11*10*9*8*7*6*5*4*3*2*1}{4*3*2*1}\\\\_{12}P_{8} = \frac{479,001,600}{24}\\\\_{12}P_{8} = 19,958,400\\\\$

There are a little under 20 million different permutations.

<h3>Answer: 19,958,400</h3>

Side note: your teacher may not want you to type in the commas

============================================================

Part B

In this case, order doesn't matter. We could use the nCr combination formula like so.

$_{n}C_{r} = \frac{n!}{r!(n-r)!}\\\\_{12}C_{8} = \frac{12!}{8!(12-8)!}\\\\_{12}C_{8} = \frac{12!}{4!}\\\\_{12}C_{8} = \frac{12*11*10*9*8!}{8!*4!}\\\\_{12}C_{8} = \frac{12*11*10*9}{4!} \ \text{ ... pair of 8! terms cancel}\\\\_{12}C_{8} = \frac{12*11*10*9}{4*3*2*1}\\\\_{12}C_{8} = \frac{11880}{24}\\\\_{12}C_{8} = 495\\\\$

We have a much smaller number compared to last time because order isn't important. Consider a group of 3 people {A,B,C} and this group is identical to {C,B,A}. This idea applies to groups of any number.

-----------------

Another way we can compute the answer is to use the result from part A.

Recall that:

nCr = (nPr)/(r!)

If we know the permutation value, we simply divide by r! to get the combination value. In this case, we divide by r! = 8! = 8*7*6*5*4*3*2*1 = 40,320

So,

$_{n}C_{r} = \frac{_{n}P_{r}}{r!}\\\\_{12}C_{8} = \frac{_{12}P_{8}}{8!}\\\\_{12}C_{8} = \frac{19,958,400}{40,320}\\\\_{12}C_{8} = 495\\\\$

Not only is this shortcut fairly handy, but it's also interesting to see how the concepts of combinations and permutations connect to one another.

-----------------

<h3>Answer: 495</h3>

5 0

3 years ago

What is 120x6 it is 720 120x6=720

erica [24]

Answer:

Yes

Step-by-step explanation:

3 0

3 years ago

Gimme some relaxation songs​

Gimme some relaxation songs