X^2-81=0
x^2-81+81=0+81
x^2=81
sqrt(x^2)=+-sqrt(81)
x=+-9
x=-9 and x=9
Answer: Options D. -9 and E. 9
Answer:
p = 5
Step-by-step explanation:
It’s c because the triangle is a isosceles triangle meaning both base angles are the same! So a triangle equals 180°. So you subtract 104 from 180. Then divide it by 2 since the base angles are the same
180-104= 76
76/2=38°