Answer:
See below ~
Step-by-step explanation:
Part (a) :
- Formula : Perimeter = 2 (Length + Width)
- ⇒ 278 = 2(54 + Length)
- ⇒ 139 = 54 + Length
- Length = 139 - 54 = 85 m
Part (b) :
- Formula : Area = Length × Width
- ⇒ 8811 = 99 x Width
- ⇒ Width = 8811/99
- Width = 89 cm
M is always positive is not true.
Hope this helps!
The nature of the roots can be determined by the determinant of the equation. The determinant is:
b² - 4ac
If this is positive, there are two roots
If this is 0, there is only one root
If this is negative, there are complex roots
