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Earn +20 ptsQ: What is 4 multiplied by pie multiplied by r?
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What is the surface area of half a sphere?
its 2 pie r squared BUT you have to add back the base (a circle) which is pie r2 The original formula is 4 pie r squared Your new formula is (2 pie r squared + pie r squared)
What is the area of a hemisphere?
one half multiplied by four multiplied by pie multiplied by the radius squared
Given a sphere with radius r what does the formula represent?
Do you mean volume or surface area? volume = 4/3 x pi x r^3 (four divided by three, multiplied by pi, multiplied by radius cubed). surface area = 4 x pi x r^2 (four multiplied by pi, multiplied by radius squared).
What is the area of a circle with a radios of 4?
Area of a circle = pie(3.14)*r*r since, radius = 4 units area = 3.14*4*4 = 50.24 units
Can a 3 X 4 matrix be multiplied by a 4 X 1 matrix?
Yes. If one matrix is p*q and another is r*s then they can be multiplied if and only if q = r and, in that case, the result is a p*s matrix.
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