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nordsb [41]
3 years ago
12

PLEASE HELP ME GUYS!!

Mathematics
1 answer:
Maru [420]3 years ago
5 0

Answer:

\frac{7}{3}

Step-by-step explanation:

csc(Ф) is equivalent to the inverse of sin(Ф)

  • csc = \frac{1}{sin}

Since sin(Ф) = 3/7, the inverse of this would be 7/3

So, csc = \frac{1}{\frac{3}{7} }=\frac{7}{3}

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12

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( J , Q, K 4 each)

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= C(12,2)/C(52,2) = 66/1326 = 11/221

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It takes William 45 minutes to weed the garden. It takes his younger sister May 75 minutes to do the same job. If they work toge
marshall27 [118]

Answer:

B. 28 minutes

Step-by-step explanation:

According to the given statement,

William weeds the whole garden in 45 minutes, then in one minute he will weed 1/45 of the garden

and

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When they both will work together, they will weed (1/45+1/75) of the garden in one minute

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So,

Option B is the correct answer ..

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