Given these two lines: -1 a+3 6- a-5 Where do the two lines intersect? • Your answer must be a point: (a, y)

Marcelo jogs at a speed of 7 miles per hour when there are no hills. He plans to jog up a mountain road which will cause his speed to decrease by r miles per hour. Which of the following expressions represents the time, t, in hours it will take him to jog 13 miles up the mountain road? 13-r 7 13 t== 7+r 7+r 13 13 7-r +-

a ship is being monitored by radar. its position is given by: xship=7T, yship= 3T+2 a torpedo is fired at the ship. its position is given by: xtorpedo= -4T+8, ytorpedo=9T will the torpedo hit the ship

Samila is sitting under her tarp at the ocean and decides to walk to the snack shack. She can walk 1.7 feet per second in the sand and 2.4 feet per second on the sidewalk. Her tarp is 25 feet away from the nearest point B along a straight boardwalk. The snack shack is 87 feet away from point B. (So the distance from B to C is 87 feet). Sidewalk Snack shack If she walks in the sand along a straight line to the sidewalk and then walks the rest of the way on the sidewalk, find an expression that gives the total time to reach the snack shack in terms of x, the distance from B to where she first reaches the sidewalk. T(x) = Find the minimum time it takes for Samila to reach the snack shack. (I'm looking for the TIME here.) DO NOT USE CALCULUS TO DO THIS. Minimum TIME required to get to snack shack = seconds. (Round to the nearst second)