Step-by-step explanation:
Complex roots or imaginary roots must come in conjugate pairs. If -4i is a root, that means 4i is also a root.
A possible polynomial is:
y = (x + 4i) (x − 4i)
y = x² − 16i²
y = x² + 16
Answer:
Easy... its 39.4
Step-by-step explanation:
Cirumference is the lenght all the way around the circle
while radius is only half the circle so you just divide the cirumference by 2 to get half.
Answer: Answer; X = 5cm
The length of all three sides would be 13cm, 13cm and 10cm.
Step-by-step explanation: First of all the given triangle is an isosceles triangle which means two sides measure 2x + 3. The third side measures 2x. The perimeter measures the entire length of the triangle, which means, perimeter equals
(2x + 3)+ (2x + 3)+ 2x = 36
2x+3+2x+3+2x=36
6x + 6 = 36
Subtract 6 from both sides of the equation
6x = 36 -6
6x = 30
Divide both sides of the equation by 6
X =5cm.
45000 is the answer because 1800 x 25 = 45000