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ehidna [41]
3 years ago
6

A dance instructor chose four of his 10 students to be on stage for a performance. If order does not matter, in how many differe

nt ways can the instructor choose the four students? 10 C 4 = StartFraction 10 factorial Over (10 minus 4) factorial 4 factorial 210 1,260 6,300 25,200
Mathematics
1 answer:
Juliette [100K]3 years ago
3 0

Answer:

210

Step-by-step explanation:

10x9x8x7x6x5x4x3x2x1 divided by 6x5x4x3x2x1x4x3x2x1=

(Take out 1 through 6 on both sides)

10x9x8x7 divided by 4x3x2x1=

5040 divided by 24=

210

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Yes, 4/12 is greater than 1/6

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In a competition of 50 professional ballroom dancers, 22 compete in the fox-trot competition, 18 compete in the tango competitio
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Two friends practice taekwondo in the same class. The age of the older friend is three times that of the younger. The sum of the
vampirchik [111]

Answer:

4 and 12

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6 0
2 years ago
Plsss help me with this question!!!
Molodets [167]
There are 27 men in the train car.
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2 years ago
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julsineya [31]

Hey!

Hope this helps...

~~~~~~~~~~~~~~~~~~~~~~~~

Generally what I like to do, to solve questions like this is to substitute the given answers into the equation to solve this faster...

Equation: x^2 + 10x + 12 = 36

A.) (-12)^2 + 10(-12) + 12 = 36

144 - 120 + 12 = 36

24 + 12 = 36

36 = 36

(2)^2 + 10(2) + 12 = 36

4 + 20 + 12 = 36

24 + 12 = 36

36 = 36


Since we found the answer with the first try, we already know the correct answer is A.

So...

The Correct answer is: A.) x=-12 or x=2

4 0
3 years ago
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