Eliminate the parameter in the equations x=cos(t)-5 and y=3sin(t)+6. How can the rectangular equation be described? 1) circle
2) ellipse
3) parabola
4) hyperbola

the diagram shows you   triangle def with de=4, df=9 and de≠df≠ef.

the sum of the lengths of two triangles' sides are always greater than the length of the third side:

substitute sides lengths:

then 5< ef< 13 (option 3 is true).

def is a scalene triangle with all sides of different lengths (option 5 is true, option 2 is false).

answer: correct choices are 1, 3 and 5

the graph g(x) is f(x) translated 7 units in the negative y direction and translated 2 units in the negative x direction