How fast would sam travel in his boat if he covered 10 miles in 2 hours?

20 miles per hour

30 miles per hour

5 miles per hour

12 miles per hour

The correct answer is C. 5 miles per hour.

Step-by-step explanation:

1. Let's review the information provided to us for solving the question:

Distance covered by Sam in his boat = 10 miles

Time of travel of Sam in his boat = 2 hours

2. Let's find out the speed of Sam's boat during his travel:

Speed of Sam's boat = Distance covered by Sam in his boat / Time of travel of Sam in his boat

Speed of Sam's boat = 10 miles / 2 hours

Speed of Sam's boat = 5 miles per hour

The correct answer is C. 5 miles per hour.

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this