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Jason wants to choose 9 players for his track team. There are 12 players to choose from. How many different teams can Jason make?

- anonymous

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- anonymous

Multiply 12 by 9

- anonymous

108

- anonymous

Right :)

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## More answers

- anonymous

thanks!! Could you help me with a few more?

- anonymous

If I can!

- anonymous

Ok, 1 sec

- anonymous

I'll do my best

- anonymous

Write the number of permutations in a factorial form. Then simplify. How many different ways can you and four of your friends sit in the backseat of a limousine?

- anonymous

@TragicTruth ? I thought you were gonna help me...?

- anonymous

Didn't get the notification :/

- anonymous

@TragicTruth hello?

- anonymous

Did they give you any multiple choice answers or not?
I'm also researching permutations in a factorial form because i've never had to do them like that

- anonymous

My choices are
A) 4!; 24
B) 4!; 120
C) 5; 120
D) 5!; 720
@TragicTruth

- anonymous

Okay so it looks like 120 because you can do 5*4*3*2*1= 120

- anonymous

so C?

- anonymous

I would say so because there's 5 people

- anonymous

ok, how about this question?
Below are the results of tossing a number cube 9 times. Find the experimental probability of tossing an odd number.

- anonymous

4,3,6,6,2,5,3,5,1

- anonymous

@TragicTruth

- anonymous

Add up how many numbers there are which is 9

- anonymous

And then count how many of the numbers were odd

- anonymous

5 were odd numbers

- anonymous

Good! So your answer is 5/9

- anonymous

thanks! Here's another
When buying a new car, you have a choice of 4 different models, 3 different colors, and either compact or family size. How many choices are there for one car?

- anonymous

@TragicTruth can you help me understand this?

- anonymous

I have to have this stuff finished at a certain time, or I fail Math. So im kinda trying to hustle

- anonymous

So you have 4 different models, 3 different colors and 2 other choices which is your compact or family size

- anonymous

$ * 3 * 2

- anonymous

Sorry I meant 4 * 3 *2

- anonymous

24?

- anonymous

Yeah I understand and I'm sorry because I'm trying to do the same :/

- anonymous

Correct!

- anonymous

So you have 24 choices for the car

- anonymous

THANKS!!
A bag contains tiles with the letters C-O-M-B-I-N-A-T-I-O-N-S. Lee chooses a tile without looking and doesnâ€™t replace it. He chooses a second tile without looking. What is the probability that he will choose the letter O both times?

- anonymous

So once again, count how many letters there are ( 12 )

- anonymous

And how many of those letters are O?

- anonymous

2

- anonymous

Right so the answer is 2/12

- anonymous

thanks!
A pizza shop offers the toppings shown below. How many different 3-topping pizzas can you make?
Peperoni
Mushrooms
Sausage
Onion
Ham
@TragicTruth

- anonymous

Do you have choices?

- anonymous

6
10
4
5
@TragicTruth

- anonymous

um..

- anonymous

You basically do 5 * 4 / 2*1 which is 10

- anonymous

You can make 10 different 3 topping pizzas

- anonymous

thanks, and I swear on my grave and first unborn child these are the last 2 questions!

- anonymous

A bag contains 2 white marbles and 7 purple marbles. Two marbles are drawn at random. One marble is drawn and not replaced. Then a second marble is drawn.
a) What is the probability of selecting a purple marble and then a white marble?
b) what is the probability of selecting two white marbles?
c) Is there a greater chance of selecting two white marbles ina row or two purple marbles in a row?

- anonymous

Haha it's fine, sorry I'm taking so long, I'm working on my own stuff as well :)

- anonymous

its fine! I just need help in Math, your the first person to ever sit down and really help me :)

- anonymous

Okay so there are 9 marbles in total ( 7 + 2 ) and there are 7/9 purple and 2/9 white. So what's your probability of selecting a purple marble? And then a white marble?

- anonymous

i think 63 and 18?

- anonymous

The chances of the first marble being purple is 7/9 because we have 9 marbles in total and 7 of them are purple. But if we take one purple out of the bag, there is only 6/8 left.
7/9 * 6/8 = 7/12

- anonymous

For being able to select two white marbles, just change the numbers to be correct for the white marbles
( 2/9 * 1/8 ) = 1/36

- anonymous

The last question is asking if you think you have a greater chance of picking out two marbles in a row or two purple marbles in a row. The answer is purple because it's 7/12 vs. 1/36 meaning there is more purple ( while there are only 2 white marbles, there are 7 purple marbles )

- anonymous

So we have 1/36 chance of picking white marble?

- anonymous

OMG! MATH GENIOUS!!!!!!

- anonymous

Spelled that wrong

- anonymous

Right, it's a 1/36 chance of picking a white marble :)

- anonymous

I did the math above so in case you need to show it :)

- anonymous

the 2/9 turns to 1/8 because you have 2 white marble out of 9 but if you select one white marble, you're left with only one white marble and only 8 marbles in total.

- anonymous

I hope that made sense ^.^

- anonymous

Thanks!! Could I ask 1 more question, Im not sure about my answer?

- anonymous

@TragicTruth

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- anonymous

I'm really sorry but I don't know :/

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