TIME REMAINING 1
42
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44
45
7
47
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49
50
01:45:30
What is the equation of the line that is perpendicular to the
given line and passes through the point (3.0)?
(-32)
(3.0)
O 3x + 5y = -9
3x + 5y = 9
5x - 3y = -15
5x - 3y = 15
12-13
Save and Exit

Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.