The center of a hyperbola is located at the origin. One focus is located at (0,20), and its associated directrix is
represented by the line y = -256/20. What is the equation of the hyperbola?
O y^2/16^2 - x^2/20^2 = 1 O y^2/12^2 - x^2/16^2 = 1 O y^2/20^2 - x^2/12^2 = 1 O y^2/16^2 - x^2/12^2 = 1

The frequency table shows a set of data collected by a doctor for adult patients who were diagnosed with a strain of influenza. patients with influenza age range number of sick patients 25 to 29 30 to 34 35 to 39 40 to 45 which dot plot could represent the same data as the frequency table? patients with flu

Tabby sells clothing at a retail store, and she earns a commission of 6.25% on all items she sells. last week she sold a pair of jeans for $32.50, a skirt for $18.95, and 2 blouses for $14.95 each. what was tabby's total commission? a $4.15 b $5.08 c $81.35 d $348.60

Given that y varies directly to the square root of (x + 1), and that y = 1 when x = 8,(a)express y in terms of .x,(b)find the value of y when x = 3,(c)find the value of x when y = 5.