This table gives a few (x, y) pairs of a line in the coordinate plane.
x y
-79 -68
-68 -51
-57 -34
What is the x-intercept of the line?

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

Given the following sampling distribution of one mean with a sample size 49, from a normally distributed population,find the population standard deviation, o.79828588912497

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days