A curve is described by the following parametric equations: x=3+t y=t^2 -4 which statement best describes the curve?

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

Aperpendicular bisector, cd is drawn through point con ab if the coordinates of point a are (-3, 2) and the coordinates of point b are (7,6), the x-intercept of cd is point lies on cd.

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28