Answer: a
Step-by-step explanation:
Answer:
<h3>C. (a, b)</h3>
Step-by-step explanation:
The formula of a midpoint:

We have A(0, 0) and C(2a, 2b). Substitute:

M(a, b)
The given inequality is equivalent to
.. |p| < (9 +7)/4
which is represented by the 1st selection.
Answer:
(-7,-5)
Step-by-step explanation:
Converting the circle into the form (x-h)^2+(y-k)^2=r^2, we get
x^2+14x+49+y^2+10y+25=7+25+49
So we get
(X+7)^2+(y+5)^2=81
So the center of the circle is (-7,-5)