Find an equation in standard form for the hyperbola with vertices at (0, ±6) and asymptotes at y = ± 3/5x.
answers:
a) ((y^2)/)/25)=1
b) ((y^2)/)/36)=1
c) ((y^2)/)/9)=1
d) ((y^2)/)/100)=1

Titus works at a hotel. part of his job is to keep the complimentary pitcher of water at least half full and always with ice. when he starts his shift, the water level shows 4 gallons, or 128 cups of water. as the shift progresses, he records the level of the water every 10 minutes. after 2 hours, he uses a regression calculator to compute an equation for the decrease in water. his equation is w –0.414t + 129.549, where t is the number of minutes and w is the level of water. according to the equation, after about how many minutes would the water level be less than or equal to 64 cups?