13 f In the same circle or in congruent circles:
Congruent arcs determine ... chords,

Congruent arcs determine
choices -
Equidistant
chords.
Central
Congruent
Distinct
Equidistant
Infinitely many
IF U DONT KNOW THE ANSWER DONT ANSWER

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

im alright what do you need

step-by-step explanation:

-2

7 - 9 = -2

reversed:

-2 + 9 = 7

answer: when you burn wood, the carbon reacts with the oxygen in the air to create ash and smoke. that is a permanent change you cannot undo that.

step-by-step explanation: