Since the diameter is 6 cm, the radius is 3 cm. Use the area formula to get 113.04 cm squared. Then, you multiply that by the height of the rod, which is 20 cm. The volume of one rod is 2260.8 cm cubed. To find how much steel is needed for 189 rods, multiple the volume of one rod by 189. Your answer should be 427291.2 cm³.
value of x is: x= i and x= -i
Step-by-step explanation:
We need to find the value of x from
using quadratic formula.
The term is: 
The quadratic formula is:

Where a = 1, b=0,c=1
Putting values:

So, value of x is: x= i and x= -i
Keywords: Quadratic formula
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Answer:
Step-by-step explanation:
4√5+9<span>√7
Hope this helps!</span>
This is the answer i cant type it so i just snipped it good luck!!!:)