The coordinates of the midpoint of $\overline{GH}$ are $M\left(-\frac{13}{2},-6\right)$ and the coordinates of one endpoint are $G\left(-4,\ 1\right)$ .

The coordinates of the other endpoint are

What is the expression in factored form? -x^2 + 3x + 28 a. (x-7)(x-4) b. -(x-7)(x+4) c. (x+4)(x+7) d. -(x-4)(x+7)

Ascientist has discovered an organism that produces five offspring exactly one hour after its own birth, and then goes on to live for one week without producing any additional offspring. each replicated organism also replicates at the same rate. at hour one, there is one organism. at hour two, there are five more organisms. how many total organisms are there at hour seven? 2,801 19,531 19,607 97.655

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c