Three jet-skis in a 300 kilometre handicap race leave at two hour intervals. Jet-ski 1 leaves first and has an average speed of 25 kilometres per hour for the entire race. Jet-ski 2 leaves two hours later and
has an average speed of 30 kilometres per hour for the entire race. Jet-ski 3 leaves last, two hours after
jet-ski 2 and has an average speed of 40 kilometres per hour for the entire race.
a. Sketch a graph to show each jet-ski's journey on the one set of axes.
b. Determine who wins the race.
c. Check your findings algebraically and describe what happened to each jet-ski during the course of the race.

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =

I've been working on this for a few days and i just don't understand, it's due in a few hours. you.the direction of a vector is defined as the angle of the vector in relation to a horizontal line. as a standard, this angle is measured counterclockwise from the positive x-axis. the direction or angle of v in the diagram is α.part a: how can you use trigonometric ratios to calculate the direction α of a general vector v = < x, y> similar to the diagram? part bsuppose that vector v lies in quadrant ii, quadrant iii, or quadrant iv. how can you use trigonometric ratios to calculate the direction (i.e., angle) of the vector in each of these quadrants with respect to the positive x-axis? the angle between the vector and the positive x-axis will be greater than 90 degrees in each case.part cnow try a numerical problem. what is the direction of the vector w = < -1, 6 > ?

This graph shows a portion of an odd function. use the graph to complete the table of values. x f(x) −2 −3 −4 −6 im sorry i cant get the graph up