Here are the first four terms of a quadratic sequence
the nth term of this sequence is is an2 bn + c

1, 11, 27, 49

find value a, b and c

Acircle has a circumference of 28.36 units what is the diameter of the circle

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

The table below shows the approximate masses of a dust particle and a grain of pollen. dust particle 0.000000778 g grain of pollen 0.00000000155 g the mass of a dust particle can be estimated and written in the form a × 10^b, where a = 8 and b = the mass of a grain of pollen can be estimated and written in the form a × 10^b, where a = 2 and b = based on the estimates, the mass of a dust particle is approximately blank times larger than the mass of a grain of pollen.