Which side lengths would NOT make a triangle? 11 cm, 10 cm, 21 cm
25 cm, 9 cm, 20 cm
13 cm, 15 cm , 7 cm
16 cm, 17 cm, 15 cm

Mrs. renoir has completed the interior portion of a quilt top measuring

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β

Write the equations in logarithmic form 9^4=6,561