The area of a triangle is one half the area of the parallelogram with the same base and height.
For a triangle, we have the formula
.
For a parallelogram, we have
.
An integer is a whole number which can either be positive or negative. Hence the numbers are -1,-2,3 to negative infinity or zero or 1,2,3 to positive infinity. In order to solve the problem, we take the square root of 39.But because the answer is not a whole number alone, we take the nearest number in which its square root is an integer. The answer is 36. Hence the answer here is 6.
They affect the signs of p and q in different ways.
Firstly, if c is negative, it means that p and q have opposite signs.
If c is positive, then it means that p and q have the same signs. However, to determine whether they are both positive or both negative, we then have to look to b. If b is negative, both p and q would be negative. If b is positive, then both p and q are positive.