Hours (x) 0 1 2 3 4 5 Number of Bacteria (y) 23 53 123 282 650 1,493 The table shows the growth of a type of bacteria. Rounded to the nearest tenth, which equation best models this data? A) y = 266x - 227 B) y = (23)(2.3)x C) y = (2.3)(23)x D) y = 93x2 - 2.037x + 86

If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)

Solve the equation - 2(m -30) = -6m a-15 b-13 c-8 d8

Find the volume of the described solid. the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x. a) 441b) 147c) 864d) 882