In a election, there are a total of 80,000 voters and there are two candidates, X and Y. Only 80% of the voters go for polls to vote. Out of these voters, 60% votes for X. How many votes does Y get?

  38,400 for X

  25,600 for Y

Step-by-step explanation:

X got 60% of 80% of 80,000 votes, so ...

  80,000·0.80·0.60 = 38,400

X got 38,400 votes.

__

Y got 40% of 80% of 80,000 votes, so ...

  80,000·0.80·0.40 = 25,600

Y got 25,600 votes.

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92