The graph shown, called the standard normal curve, is used in statistical analysis. The area under the curve is 1 square unit. There is a vertical line of symmetry at x = 0. The areas of the shaded regions are indicated
on the graph.

Find the area under the curve for x > 0.
The area under the curve for x > 0 is..

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

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4

the answer would be 484

step-by-step explanation:

just multiply 0.484 times 1,000 (formula)