Quadrilateral ABCD has the following vertices: A(-6, -2)
B(-4,4)
C(8,1)
D(6, -6)
Also, ZA is a right angle.
Is quadrilateral ABCD a rectangle, and why?
answers: (ignore the chosen one)

Which will form a composite function?

Written as a simplified polynomial in standard form, what is the result when (2x+8)^2(2x+8) 2 is subtracted from 8x^2-38x 2 −3?

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?