Petra is given the equation (x + 15 )^2 + ( y+4 )^2 = 100 and identifies it's graph as a circle whose center is (-15,4) and radius is 10. has petra made a mistake ? explain.

incomplete question. how do you expect anyone to you when you do not post the question in its entirety?

answer:  

123455421

step-by-step explanation: easy

12.5 feet

step-by-step explanation:

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b