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mr_godi [17]
3 years ago
7

The solids are similar. Find the surface area S of the red solid.

Mathematics
1 answer:
Brut [27]3 years ago
5 0
The refresh is a little hard was
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Step-by-step explanation:

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The equation of a circle is given below.
Nataliya [291]

Answer:

(h,k) = (32,-4)

r = 32

Step-by-step explanation:

The general equation for a circle is given by:

(x-h)^2+(y-k)^2=r^2   (1)

where (h,k) is the center of the circle and r is the radius.

You have the following equation:

x^2+(y+4)^2=64x   (2)

You first need to complete squares in order to obtain an equation of the form (1). Thus, you have that the second term must be in a perfect square trinomial:

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b = 32

Then, you have to sum 32^2 and also subtract the same number in the expression (2):

x^2-64x+(y+4)^2=0\\\\(x^2-64x+32^2)+(y+4)^2-32^2=0\\\\(x-32)^2+(y+4)^2=32^2

you compare the last result with expression (1) and obtain that the raiuds of the circle is r = 32

Furthermore, the center of the circle is (h,k) = (32,-4)

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Convert 0.39 to fraction
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