A man stands at A and looks at point Y across the river. He gets a friend to place a stone at X
so that A, X and Y are collinear. He then
measures AB, BX and XC to be 15 m, 30 m and
45 m, respectively. Find CY, the distance across
the river.​

What's the difference between: x≥0 and nonnegative integer. ?

What does the sign of the slope tell you about a line?

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)