A common internal tangent is
(a) A line that touches the inside edge of a circle exactly once.
(b) A tangent line to two circles where the circles are both on the same side of the line.
(c) A tangent line to two circles where the circles are on the opposite sides of the line.
(d) A tangent line to both of two concentric circles.
c
Mathematics
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over the given region.
over the rectangular solid in the first octant bounded by the coordinate planes and the planes 
, 
, 
A. 25 B. 1250 C. 250 D. 125
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Provide an appropriate response.When solving 7D + 4 = 60, you would first subtract 4 from both sides of the equation.
A. True B. False
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Write as a fraction in lowest terms.0.0005
A. 
B. 
C. 
D. 
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Multiply.-4 ? 4 ? (-4)
A. 54 B. -64 C. 164 D. 64
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