Yes. 1 of them is ' a quad. is a trap.' and the 2nd one is 'trap. has at least 1 pair of parallel sides'
-2,2 is the answer i think
Oi
Just calculating the differential. Step by step:

If you want to know where the tangent has no slope:
Answer:
<em><u>1</u></em><em><u>.</u></em><em><u> </u></em><em><u>A cross section is the new face you see when you slice through a three-dimensional figure. For example, if you slice a rectangular pyramid parallel to the base, you get a smaller rectangle as the cross section.</u></em>
(5.91×10^−3)⋅(8.7×10^10)
= (5.91 x 8.7) x 10^(- 3 + 10)
= 51.417 x 10^7
= 5.1417 x 10^8
Answer is
B. 5.1417 × 10^8