Discriminant, D = b² - 4ac
x² - 4x + 5 = 0 comparing to ax² + bx + c = 0
a = 1, b = -4, c = 5
D = b² - 4ac = (-4)² - 4*1*5 = 16 - 20 = -4
In taking the square root of the discriminant of -4, √-4 = 2i = Not Real. So:
Discriminant is -4, so the equation has no real roots.
The second option is correct.
Answer:
your answer is not correct.
-9,-3,3,9,-9,-3,3,9 so forth until -3
The height of the rectangular prism is 15 centimeters
Answer:
V = 277.088 m³
Step-by-step explanation:
Volume of Cylinder Formula: V = πr²h
We are given <em>r</em> = 4.2 and <em>h</em> = 5, so simply plug it into the formula and solve:
V = π(4.2)²(5)
V = 17.64π(5)
V = 88.2π
V = 277.088
