Select all of the following equation(s) that are quadratic in form. x4 – 6x2 – 27 = 0

3x4 = 2x

2(x + 5)4 + 2x2 + 5 = 0

6(2x + 4)2 = (2x + 4) + 2

6x4 = -x2 + 5

8x4 + 2x2 – 4x = 0

Choose the more precise measurement. 26.4 cm or 8.39 cm

Using inductive reasoning, what is the next two numbers in this set? 1,-7,13,-19 i got the numbers 14,-26 is that right?

Traffic on saturday, it took ms. torres 24 minutes to drive 20 miles from her home to her office. during friday's rush hour, it took 75 minutes to drive the same distance. a. what was ms. torres's average speed in miles per hour on saturday? b. what was her average speed in miles per hour on friday?