Answer:
B If a quadrilateral has diagonals that bisect each other, then the quadrilateral is a parallelogram
Explanation:
A rectangle just like a square has diagonals that bisect each other and they are congruent( two lines are congruent if they are equal). A parallelogram is a quadrilateral with parallel sides and when its diagonals intersect, they are congruent too. Therefore a rectangle with diagonals that bisect each other is not necessarily a parallelogram.
Answer:
8x+2y+3x-18y+x^2
final answer: x^2+11x-16y
*edited*
A 0.95 of the area is area covered by 2 standard deviations from the mean
0.68 is that for 1 standard deviation
answer = 0.95 - 0.68 = 0.27
You've got it right. It is -2.
when x=-2, both line have the same y value 1.
