I need this for a test: The sum of 3x^2+5x-6 and -x^2+3x+9 is 1) 2x^2+8x-15

2) 2x^2+8x+3

3) 2x^4+8x^2+3

4) 4x^2+2x-15

Write a similarity statement for the similar triangles. afgh ~ a

If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: minus2.00, minus1.00, 0, 1.00, 2.00? why? a. the z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores. b. the z score of 0 is most preferable because it corresponds to a test score equal to the mean. c. the z score of minus2.00 is most preferable because it is 2.00 standard deviations below the mean and would correspond to the highest of the five different possible test scores. d. the z score of minus1.00 is most preferable because it is 1.00 standard deviation below the mean and would correspond to an above average

Find the axis of symmerty for x y=x squared -4x-8