First work out the surface area of the solid
Area of cylindrical part:-
length of this part = 108 - 2*18 = 72 so its area
= 2 * pi * r * 72
= 2 *pi* 18 * 72 = 8143.01 cm^2
Area of the 2 hemispheres = 4 pi * 18^2 = 4071.50 cm^2
Total surface area of the solid = 12,214.51 cm^2
Cost of polishing = 12,214.51 * 7 = 85,501.58 paise
Answer:
6
Step-by-step explanation:
6 because 12 divided by 2 is 6 and it takes 2 hours to fill yw
Answer:
12 days
Step-by-step explanation:
420/35 to find amount of days to finish book
420/35 = 12
Answer:
Infinite Amount of Solutions
Step-by-step explanation:
Step 1: Write equation
3(4x + 6) = 2(6x + 9)
Step 2: Solve for <em>x</em>
<u>Distribute:</u> 12x + 18 = 12x + 18
We see here that both sides of the equation are the same. Therefore, <em>x</em> is equal to infinite amount of solutions.
Another way to think about it is that the 2 lines are the same line. If both lines are the same, then they have infinite amount of solutions.