Find an equation for the plane that contains the line v = (−1, 1, 2) + t(3, 9, 5) and is perpendicular to the plane 4x + y − 9z + 2 = 0.

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse.a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?

The gdp is $1,465.2 billion. the population is 249,793,675. find the per capita gdp.