Answer:
D=36, x1=1, x2=4
Step-by-step explanation:
Find the D:
D = b2 - 4ac = (-10)2 - 4·2·8 = 100 - 64 = 36
Since the discriminant is greater than zero, the quadratic equation has two real roots
Answer:
polygon y is circumscribed about polygon x. i think
Step-by-step explanation:
Answer:
Step-by-step explanation:
The point at the terminal side of an acute angle is given by .
That is,
and .
Let r be the length of line segment drawn from the origin to the point and is given by the formula:
Substituting the values of x and y into r,
Thus,
Also, is given by:
Substituting values of x and r,