By completing the square express the inequality x^2 + 8x + c > 0 in the form
|x +a |> b where a and b are constants. therefore, find the interval of x so that
x^2 + 8x +10 is always more than 3

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

answer: the resulting cross section is a rectangle. solution: a plane parallel to the base of a triangular prism will intersect a cross section that is the same shape as its bases. so the cross section is a triangle.

step-by-step explanation:

t= 1/3.

hope this .

step-by-step explanation: