Which expression is equivalent to =9x^-1+y^-9/-15x^5+y^-3? assume x=0 y=0

answer

(9y⁹ + x) / (15x⁶y⁹ + xy⁶)

explanation

(9x⁻¹ + y⁻⁹)/(15x⁵ + y⁻³)  

multiply both the numerator and denominator by x

x(9x⁻¹ + y⁻⁹)/x(15x⁵ + y⁻³)   = (9 + xy⁻⁹) / (15x⁶ + xy⁻³)

multiply both the numerator and denominator by y⁹

y⁹(9 + xy⁻⁹) / y⁹(15x⁶ + xy⁻³) = (9y⁹ + x) / (15x⁶y⁹ + xy⁶)

the answer b

step-by-step explanation:

i took the test

12

step-by-step explanation:

a triangle's   full angle is 180 degrees so 180 - 156 = 24. 24/2=12