In 4 years time a mother will be three times as old as her son. four years ago she was five times as old as her son. find their present ages.

write as a simultaneous equations

What is the equation of the graph below? y=sec(x)-4

In right ∆abc shown below, the midpoint of hypotenuse ac is located at d and segment bd is drawn.if ab = 12 and bc = 16, then explain why bd = 10. hint: consider what you know about the diagonals of a rectangle.

A.s.a.! similarity in right triangles, refer to the figure to complete this proportionc/a = a/? a.) cb.) hc.) rd.) s