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Troyanec [42]
3 years ago
10

PLEASE HELP ASAP!!!!!!

Mathematics
2 answers:
kogti [31]3 years ago
7 0

Answer: angle 1 and 3

Step-by-step explanation:

exis [7]3 years ago
4 0

Answer:

1 and 3

Step-by-step explanation:

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Eight people are entered in a race. If there are no ties, in how many ways can the first three places come out? a.336 b.368 c.67
Luden [163]
The first thing to do is to calculate how many ways you can choose 3 people from a set of eight.  In order to do this, we need to use the attached formula.
(The letter 'n' stands for the entire set and 'r' stands for the number of objects we wish to choose.)
So we wish to choose 3 people ('r') form a set of 8 ('n')
combinations = n! / r! * (n - r)!
combinations = 8 ! / (3! * 5!)
combinations = 8 * 7 * 6 * 5! / (3!) * (5!)
combinations = 8 * 7 * 6 / 3 * 2
combinations = 56

Now of those 56 combinations, the 3 people can finish in 6 different ways.
For example, persons A, B and C could finish
ABC or ACB or BAC or BCA or CAB or CBA

So to get the TOTAL combinations we multiply 56 * 6 which equals
336 so the answer is (a)


8 0
3 years ago
PLEASE RIGHT ANSWERS ONLY!!
Temka [501]

Answer

8

Step-by-step explanation:

algebra ll

4 0
3 years ago
A bookshelf contains 10 mysteries, 8 biographies, and 6 science fiction books. A book is randomly selected, replaced, then anoth
Pachacha [2.7K]

Answer:

Biography= 8/24= 1/3

Science Fiction= 6/24= 1/4

Step-by-step explanation:

The probability for biography is (biography/total amount of books.)

8/24= 1/3

The probability for science fiction is (science fiction/ total amount of books.)

6/24= 1/4

6 0
3 years ago
John and 3 friends are going out for pizza for lunch. They split one pizza and 4 large drinks. The pizza cost $12.50. They spend
gladu [14]
The answer is $1.25 a large drink

Because 17.5 - 12.5 = 5 / 4 = $1.25


I hope this helps
8 0
3 years ago
Solve for x 3x+3/x-4 = 3x+2/x+4
Lerok [7]

Answer:

here you go! with step by step so you can do it next time

5 0
3 years ago
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