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Write an equation for parabola with focus(4,0),directrix y=2

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Reference no: EM13957603

1. Write an equation for the ellipse with end points of the major axis at(7,1)and(-7,1)and end points of the minor axis at(0,5) and(0,-3)

2. Write an equation for the parabola with focus(4,0)and directrix y=2.

3. A coin is tossed 5 times.find p(atmost 4 tails)

a. 3/16

b. 13/16

c. 1/32

d. 31/32

4. For 2000 patients,blood-clotting time was normally distributed with a mean of 8 seconds and a standard deviation of 3 seconds.what percent was blood-clotting times between 5 and 11 seconds?

a. 68%

b. 34%

c. 49/5%

d. 47/5%

5.during a sale,1/6 of the CD prices are reduced.find the probability that 2 of 4 randomly-selected CDs have reduced prices?

a. 5/36

b. 25/1296

c. 25/216

d. 5/216

Reference no: EM13957603

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