Lesson 20-1 practice
10. a square has an area of 72 square inches. what is its side length s? give
the exact answer using simplified radicals.
strita
allt
a= 72 in.2 s

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11

Drag each expression to the correct location on the solution. not all expressions will be used. consider the polynomial 8x + 2x2 - 20x - 5. factor by grouping to write the polynomial in factored form.