Well the formula for the area of a trapezoid is as follows:
A=

where
a and
b are both base measures (a trapezoid has a top and bottom base)
.
Therefore, if all three have the same base length (the top and bottom lengths themselves being different yet the same on all three), the trapezoid with the greatest angle measure would have the greatest are. This is because with a greater angle measure comes a greater height (Pythagorean theorem).<span />
16x3=48 dollars saved
80+48=128
128/16=8 dollars each
Answer: 1, 3
For a cubic polynomial, there are either 3 real roots or 1 real root nad 2 complex roots in a conjugate pair.
<span>You could set up the relation as a table of
ordered pairs. Then, test to see if each element in the domain is
matched with exactly one element in the range. If so, you have a function!</span>
If you rounded it it would be 4.6