Welp here bro : If you do the equation and the solution is -2 then the student is right
If a quadrilateral has exactly 2 lines of symmetry and both are angle bisectors then the figure must be a rhombus because it has exactly 2 pairs of congruent angles.
I hope this helps! :)
I'm gonna go with triangle B. Triangles A,C,and E all look to be somewhat congruent in that they're all equilateral. Triangle D and F look similar but Triangle b looks like its isosceles and the others aren't like that.
By the chain rule,

We have

and

Putting everything together, we get

, so
, and
, so
.


Then when
, the derivative has a value of
.
Answer:
The answer is D. $618,750.
Step-by-step explanation:
20,000 x 17.50 = 350,000.
25,000 x 10.75 = 268,750.
350,000 + 268,750 = 618,750.