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
Answer:
122
Step-by-step explanation:
10a+2+5a-2=180
15a=180
a=12
10 x 12=120
120+2=122
Answer:
1 1/2 pizzas were eaten
Step-by-step explanation:
They each ate 3/4
3/4*2
or 3/4+3/4 =6/4
1 2/4
1 1/2 pizzas were eaten
The terms are 2x 4y and 8 variables are x and y coefficients are 2 and 4 number is 8 hope this helped :)
Answer:
80%
Step-by-step explanation:
Percentages are usually found by taking the value that you want to find and dividing it by the whole amount (100% of the total value available). In this case, getting 100% on the test would mean getting 120/120, because 120 points is 100% of the points available. However, the student only got 96 points out of the whole 120 points, so to find the percentage, you do 96/120 to find what part of 96 comes out of 120. Then to convert to percentage, multiply that value by 100 to get your finale value.