Use a pythagorean identity to rewrite the equation below using only the function sin θ. then find the value of r if θ=30°,60°, and 90°. r=4*sinθ*cos^2θ explain/show steps, !

Which of the following correctly justifies statement four of the two column proof? a. corresponding angles theorem b. transitive property of equality c. vertical angle theorem d. substitution property of equality

Alocal restaurant advertises that the mode cost of their most popular meals is $8. if the costs of their most popular meals are $7, $8, $8, $12, $13, $15, $17, $18, and $20, which word or phrase best describes this kind of advertising? accurate inaccurate accurate, but misleading inaccurate and misleading

Graph each quadratic function and identify its key characteristics. f(x) = x^2 - 2x - 3