Dacey wants to find out if the quadrilateral shown is a rectangle.
Dacey's plan:
• Find the slopes of all four sides.
• See if there are two pairs of the same slopes
. See if there are two pairs of slopes that are negative reciprocals.
Will her plan work? Why or why not?

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

Find the axis symmetry of x y=4x-6x+3

Aci is desired for the true average stray-load loss μ (watts) for a certain type of induction motor when the line current is held at 10 amps for a speed of 1500 rpm. assume that stray-load loss is normally distributed with σ = 2.3. (round your answers to two decimal places.)