Area of ABC : AB*AC/2
the maximum of the parabola is reached at x=-4/(2*(-1))=2 hence A is at (2,0) and B is at (2,(-2)^2+4*2+C)=(2,12+C)
C is the second root (x-intersect), which we can find :
determinant1 : D=16-4*(-1)*C=4(4+C) thus the second root is at x=
Hence the area of the triangle is
hence
.
We remark that
Hence 4+C=16 thus
C=12
The correct answer to complete the given statement above would be option A. In trigonometry, cofunctions of complementary angles are congruent. Angles are considered complements if together they equal a right angle. For example, an angle of 60 degrees is a complement of an angle measuring 30 degrees.
$25.41. You would multiply the 2.99 by 8.5.