1.If the point (-3, 7) is dilated with a scale factor of ____, and the center of the dilation is at the origin, then the image of that point is (-12.75, 29.75).
2.To the nearest unit, the approximate distance between the points (-2, 3, -5) and (2, -7, 4) is how many units?
3. The diameter of the base of a right cone is 8 cm. If the total surface area of the cone is 164 radius cm2, how many centimeters must the slant height be?
4.Which is the equation of a 20 cm diameter circle with its center at (3,-6)?
A.(x-3)^2+(y+6)^2=100
B.(x-3)^2+(y+6)^2=400
C.(x+3)^2+(y-6)^2=400
D.(x+3)^2+(y-6)^2=100
5.What is the volume of a sphere that has a 12 m diameter?
A.
509 m3
B.
904 m3
C.
4070 m3
D.
7230 m3
when answering please make sure you are positive of your answer please and thankyou to all who answer!
2007-06-05
03:18:56
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5 answers
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asked by
MEB
2
in
Mathematics