Diameter of semicircle is 4 cm
so cicumference of circle is 4pi
since there are 4 semicircles, they add up to 2 circles
so total perimeter is 8pi
which when rounded off is 25.13 cm (2d. p.)
In order to be considered a semi-conductor the material must have insulator and conductor properties, So the answer would be A,
Answer:
-3x - 30
Step-by-step explanation:
Distribute (multiply) the -3 to everything in the parentheses.
-3 (x + 10)
-3 * x = -3x -3 * 10 = -30
Answer: -3x - 30
Answer:
75?
Step-by-step explanation:
i hope this is the answer
Solution:
Two trains are moving in opposite direction with Speed 40 kmph and 60 kmph. Make train B stationary and then take the Speed of train A relative to the train B. So relative Speed of train A = 40 + 60 = 100 kmph. Before it crashes into the stationary train B it has to travel a Distance of 200 m which it will do in (0.2/100 ) hours. During this duration, the average Speed of bird has been 10 kmph i.e. before the crash total Distance covered by the bird = 0.2 * 10/100 km = 20 meters.
Hope it helps
