In an isosceles ABC, ZA = (2x + 15)°, ZB = x° and ZC = (3x – 15)° . Then what is the measure of ZA if the
measure of ZA and measure of ZC are equal?

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.

the answer is b.

step-by-step explanation:

identity property is where 0+whatever number=whatever number. basically 0+ a number.

17

step-by-step explanation:

51/3=17

thus 17 is your answer.