How do i find the length of the short leg?

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

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

Which two transformations are applied to pentagon abcde to create a'b'c'd'e'? (4 points) translated according to the rule (x, y) ? (x + 8, y + 2) and reflected across the x-axis translated according to the rule (x, y) ? (x + 2, y + 8) and reflected across the y-axis translated according to the rule (x, y) ? (x + 8, y + 2) and reflected across the y-axis translated according to the rule (x, y) ? (x + 2, y + 8) and reflected across the x-axis