Sandra had some ribbon to make bows for her hair. she cut the ribbon into 8 pieces. each piece was of a foot long. how long was
1 answer:
You might be interested in
Answer:
x = ± 10
Step-by-step explanation:
to solve the equation let y = 0 , that is
100 - x² = 0 ( add x² to both sides )
100 = x² ( take square root of both sides )
± = x , that is
x = ± 10