A ferryboat carries passengers and cars across a river that runs from north to south. The river is 0.4 mile wide. The downstream dock is on the east side of the river and 0.3 mile south of the west side’s upstream dock. The current in the river runs due south at 1.75 miles/hour. Find the speed and direction the ferryboat must take to make the crossing from the upstream dock to the downstream dock in 7 minutes.

14. (05.02 lc) what is the value of y in the solution to the following system of equations? (5 points) 2x + y = −4 5x + 3y = −6

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Indicate the formula for the following conditions: p^c(n,r)=