Complete the explanation on why a system of a linear equation and a quadratic equation cannot have an infinite number of solutions. Only if both equations described have the same ("y-intercept" or "curve") would the system have an infinite number of solutions. A linear equation will always be a ("straight line", "parabola", or "circle"), and a quadratic equation will never be a ("straight line" or "parabola").

16

step-by-step explanation:

b, 20 yards

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