Step-by-step explanation:
Sorry I cant get any more answers but I really hope that this helps
Answer:
144.2 cm
Step-by-step explanation:
Length of the iron rod is 7.4cm
Radius is 3.1m
Therefore the surface area can be calculated as follows
= 2πrl
= 2×3.142×3.1×7.4
= 144.2 I'm
Hence the surface area is 144.2cm
20/x+11=10/x+3
20(x+3)=10(x+11)
20x + 60 = 10x + 110
10x = 50
x = 5
7: 2 -(4-7) + (-7) +10
2 +3 -7 +10
= 8
9: (-10) x (-5) + (-4) + 5 -(-10)
(50) -4 +5 +10
= 61
hope this helps :) (please mark brainliest!)