Find the standard form of the equation of the parabola with a focus at (7, 0) and a directrix at x = -7.

a. y = one divided by twenty eightx2
b. x = one divided by twenty eighty2
c. -28y = x2
d. y2 = 14x

Imagine a new pasture with grass growing on it. every day after the seeds have germinated, the number of blades of grass in the pasture triples. after 18 days, the entire pasture is completely covered in grass. how many days did it take for the pasture to be one-third covered in grass?

Find cot x if sin x cot x csc x = √2

Select the correct answer from each drop-down menu. james needs to clock a minimum of 9 hours per day at work. the data set records his daily work hours, which vary between 9 hours and 12 hours, for a certain number of days. {9, 9.5, 10, 10.5, 10.5, 11, 11, 11.5, 11.5, 11.5, 12, 12}. the median number of hours james worked is . the skew of the distribution is