15. dando todas las soluciones, resuelva la ecuación: 2sen20 – seno – 1 = 0
a. 0 = -0.52 + 2k1, 0 = =+ 2kr
c. 0 = 0.52 + 2k1, 0 = - + 2knt
b. 0 = -0.52 + 2km, 0 = - + 2km
d. 0 = -0.52,

Explain how you can use the associative property to evaluate (7x50)x4.

Find the equation of a line that is perpendicular to line g that contains (p, q). coordinate plane with line g that passes through the points negative 3 comma 6 and 0 comma 5 3x − y = 3p − q 3x + y = q − 3p x − y = p − q x + y = q − p

Set up and solve a proportion for the following application problem. if 55 pounds of grass seed cover 404 square feet, how many pounds are needed for 7272 square feet?