Find the surface area of a rectangular prism with a base of 6 feet, width of 5 feet and height of 7 feet

214 ft^2.

Step-by-step explanation:

There are 6 faces:

2 of dimensions  6 * 5 = 30 * 2 = 60 ft^2 in area.

2 of dimensions  6 * 7 = 42 * 2 = 84 ft^2.

2 of dimensions 5 * 7 = 35 * 2 = 70 ft^2.

So the total surface area = 60 + 84 + 72.

214

Step-by-step explanation:

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

could you reply to this with the question so i can ?