Circle A has been dissected into 16 congruent sectors. The base of one sector is 1.17 units, and its height is 2.94 units. What is the approximate area of circle A?

27.14 units2
27.52 units2
48.92 units2
76.44 units2

Find the roots of the equation below. x^2 - 6 + 9 = 0

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)