Zeda described four triangles as shown below: triangle p: two angles measure 50°. triangle q: all sides have length 13 cm. triangle r: two sides have length 3 cm, and the included angle measures 60°. triangle s: base has length 5 cm, and base angles measure 30°. which triangle is not a unique triangle?

Solve for x where 0 equation: cot^2x+2cotx+1=0

Solve 13 + w/7= -18 (w/7 is a fraction)

Nthe opening scene of the movie raiders of the lost ark, indiana jones replaces a golden statue with a bag of sand. the platform on which the statue is placed is designed to detect the mass of the statue. if the bag of sand has a different mass than the statue, then a mechanism triggers and destruction ensues. the density of gold is about 20\text{ g/cm}^320 g/cm 3 20, space, g, slash, c, m, start superscript, 3, end superscript. the density of sand can be estimated at 2.5\text{ g/cm}^32.5 g/cm 3 2, point, 5, space, g, slash, c, m, start superscript, 3, end superscript. the gold statue can be modeled as a cylinder with height 25\text{ cm}25 cm25, space, c, m and radius 8\text{ cm}8 cm8, space, c, m. in terms of \piπpi, what is the mass of sand indiana jones needs to avoid triggering the mechanism?