The surface area formula for any sphere is 4(pi)(radius)^2
The radius is half of the diameter.
18.6 / 2 = 9.3
So, plug into the formula and solve.
4(3.14)(9.3)^2 = 1086.3 mm^2
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Answer:
The y-intercept is -2 and the equation is y=x-2
Step-by-step explanation:
-That's where the line crosses the y axis.
-The equation is y= x -2 because it has a rise/run of 1/1 which is just 1 and the y intercept is -2
( I'm so sorry I totally missed the second part of the question lol)
Answer:
575.8 cubic cm
Step-by-step explanation:
V(cone) = 1/3· π · r² · h
V = 1/3 · π · 25 · 12
V = 4(25)π or 100π = 314
V(half-sphere) = (4/3 · π r³)/2
V = (4/3π · 125) = 261.8
The real answer for this question is 3
