Answer:

Step-by-step explanation:
The distance from a point
to another point
is given by
.
So, if the distance from P to A is twice the distance from P to B, we have an equality given by:

If we power by 2 both sides of the equality to remove the square roots, we have:

And solving every parenthesis and operating the similar terms, we have:

Operating and multiplying both sides by -1:

Giving as result:

The sphere can be seen here: https://www.wolframalpha.com/input/?i=3*x%5E2+-+36*x+%2B+3*y%5E2+-12*y+%2B+3*z%5E2+-4*z+%2B+62+%3D+0
63
5 tens equals 50
13 ones equals 13
50 +13 = 63
- 23 and - 24
note that negative numbers are smaller than positive numbers.
The 2 negative numbers in the list are - 23 and - 24
and their sum = - 23 + (- 24 ) = - 23 - 24 = - 47
Answer:

Step-by-step explanation:

If any number or fraction is divided by a fraction or number, we multiply the dividend by the reciprocal of the divisor. Reciprocal of any number or fraction can be obtained by interchanging the position of numerator and denominator

To multiply one fraction by another , multiply the numerators for the numerator and multiply the denominator for its denominator.


Hope I helped!
Best regards! :D
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