A square has an area of 90 cm^2. Which of the following is the BEST estimate of the side length? 8 feet
9 feet
10 feet
4 feet

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

The perimeter of △cde is 55 cm. a rhombus dmfn is inscribed in this triangle so that vertices m, f, and n lie on the sides cd , ce , and de respectively. find cd and de if cf=8 cm and ef=12 cm. the answer is not cd=20 and de=15. i have tried that one, it does not work.

Anumberis divided by 6. then 8 is added to the q