Answer:
%52
Step-by-step explanation:
13/25 0.52 move decimal two places to left and add percent %52
The quadratic formula is the result of completing the square for ax^2+bx+c=0 when a,b, and c are unknown values. This result is:
x=(-b±√(b^2-4ac))/(2a), we have x^2-x-2=0 so
x=(1±√(1+8))/2
x=(1±√9)/2
x=(1±3)/2
x=-1 and 2
25% = 1/4
So to get the unknown number, multiply 9 by 4:
9 × 4 = 36
Answer:
x = 2 y = 0
Step-by-step explanation: