The measurement of angle A = 52 ° .
In question we need to find angle A ,
To find angle A using Law of Sines :
Law of Sine : ( a / sin A ) = ( b / sin B ) = ( c / sin C ) where a , b and c are the sides opposite to angle A , B and C resp. of a triangle .
Applying Law of Sines ,
25 / sin A = 28 / sin 62
sin A = ( 25 * sin 62 ) / 28
sin A = 0.7883
Therefore , angle A = 52 ° .
Hence , the measurement of angle A = 52 ° .
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OK. So they sold 200 raffle tickets, and Jennie bought 5 of them.
What has to happen now in order for Jennie to win both prizes ?
-- First drawing. Jennie wins.
Probability = (5 tickets) / (200 possible draws) = 5/200
Now there are 199 tickets left in the barrel, and Jennie has 4 .
-- Second drawing. Jennie wins.
Probability = (4 tickets) / (199 possible draws) = 4/199 .
The probability of it happening just this way is
(5/200) x (4/199)
= (5 x 4) / (200 x 199)
= 20 / 39,800
= 2 / 3,980 = 1 / 1,990
= 0.0005025... = 0.05 % (rounded)
I think that it is about 20 out of 100.
Answer:
the answer is 11.7
Step-by-step explanation: