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Montano1993 [528]
3 years ago
11

A class consists of 68 female students and 80 male students. One student is selected at random. What is the probability that the

student is female?
Mathematics
2 answers:
defon3 years ago
8 0
It would be 68/148 = 17/37
Oksi-84 [34.3K]3 years ago
8 0
It is 68/148=34/74=17/37
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vitfil [10]

Answer:

9y(2x - 1)(x - 2y)(x + 2y)

Step-by-step explanation:

Given

18x³y - 9x²y - 72xy³ + 36y³ ← factor out 9y from each term

= 9y(2x³ - x² - 8xy² + 4y²)

Factor the first/second and third/fourth term in the parenthesis

= 9y( x²(2x - 1) - 4y²(2x - 1)) ← factor out (2x - 1) from each term

= 9y(2x - 1)(x² - 4y²)

x² - 4y² is a difference of squares and factors in general as

a² - b² = (a - b)(a + b), thus

x² - 4y²

= x² - (2y)² = (x - 2y)(x + 2y), hence

18x³y - 9x²y + 72xy³ + 36y³

= 9y(2x - 1)(x - 2y)(x + 2y) ← in factored form

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damaskus [11]

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Step-by-step explanation:

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What is the difference between -2 and -6?<br><br> 8<br> -8<br> -4<br> 4
Sedaia [141]
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dsp73
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6 0
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