Consider the field F = (x, y,z) and the cone z 2=x2+y2/a2- a. Show that when a = 1, the outward flux across the cone is zero. b. Find the outward flux (away from the z-axis), for any a>0. Therefore, the flux is zero. Interpret this result. A. The fluxes for x > 0 and x < 0 balance when a = 1, so the flux is zero. B. The field is parallel to the surface at every point, so the flux is zero. C. The fluxes for y > 0 and y < 0 balance when a-1, so the flux is zero. D. The field is normal to the surface at every point, so the flux is zero.

false

step-by-step explanation:

false.   two legs of the trapezoid would be congruent, but the other two would not.   were all the legs congruent, then we'd have a square; were the 2 shorter sides congruent and the 2 longer sides also congruent, we'd have a rectangle.

5/12, or 5: 12

step-by-step explanation:

arc length = 6.63311 ft.

step-by-step explanation:

the formula the arc measure is:

arc length s=2πr(c)/360

where:

c   is the central angle of the arc in degrees

r   is the radius of the arc

π   is pi, approximately 3.142

using the above formula we get

s =

thus we find that arc length of an arc for a circle of radius 20 feet and central angle 19 degrees is

6.63311 feet

step-by-step explanation:

rectangles are made up of 4 right angles, which means that a side and a base meet perpendicular to one another.   their slopes then have to reflect perpendicular slopes.   perpendicular slopes are opposite reciprocals of one another.   for example, if the slope of one line is +2/3, then the perpendicular slope to that would be -3/2.   so we look for that combination in our choices.

all of them satisfy that condition (so what's the question, i guess? )