If the discriminant of an equation is positive, which of the following is true of the equation?
A. It has one complex solution.
B. It has one real solution.
C. It has two complex solutions.
Ο Ο
D. It has two real solutions.
SUBMIT

One-third of the people from country a claim that they are from country b, and the rest admit they are from country a. one-fourth of the people from country claim that they are from country a, and the rest admit they are from country b. in a combined census of the two countries, one-half of the total claimed to be from a. what is the ratio of the populations of country a to that of country b.

15 points ! ~ see if you know the answer to both you!

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.