The equation x squared plus y squared =169 defines a circle with center at the origin and radius 13. the line y=x+7 passes through the circle. using the substitution method, find the point(s) at which the circle and the line intersect

Imagine a new pasture with grass growing on it. every day after the seeds have germinated, the number of blades of grass in the pasture triples. after 18 days, the entire pasture is completely covered in grass. how many days did it take for the pasture to be one-third covered in grass?

If there is no real number solution to the quadratic equation x^2+2x+c=0 what is a possible value of c? 1 -2 0 3

When turned about its axis of rotation, which shape could have created this three-dimensional object?