An ellipse has a vertex at (1,0), a co-vertex at (0,4), and a center at the origin. which is the equation of the ellipse in standard form?

x^2/16+y^2/1=1

x^2/1+y^2/4=1

x^2/4+y^2/1=1

x^2/1+y^2/16=1

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y < 4x − 8 y is greater than or equal to negative 5 over 2 times x plus 5 part a: describe the graph of the system, including shading and the types of lines graphed. provide a description of the solution area. (6 points) part b: is the point (5, −8) included in the solution area for the system? justify your answer mathematically. (4 points)