What two letters don't appear on the telephone dial
2 answers:
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Answer:
5.93 unit distance
Step-by-step explanation:
First we would need to calculate the distance between the sphere center and the plane x + y + z = 0
where A = 1, B = 1, C = 1 are the coefficients of the plane x + y + z = 0
and x = 1, y = 4, z = 7 are the coordinates of the center of the sphere
Since the sphere has a radius of 1, then the distance from the plane to the surface of sphere would then be:
6.93 - 1 = 5.93