If the discriminant of a quadratic equation is 4, which statement describes the roots?
a. there are two complex roots.
b. there are two real roots.
c. there is one real root.
d. there is one complex root.

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c

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?

Asix-sided number cube is rolled twice. what is the probability that the first roll is an even numbe and the second roll is a number greater than 4?