Given sin 0 = and angle 0 is in Quadrant I, what is the exact value of cos in simplest form? Simplify all radicals if needed.​

Can someone me with my hwplz(only the circled ones)

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

Ascientist has discovered an organism that produces five offspring exactly one hour after its own birth, and then goes on to live for one week without producing any additional offspring. each replicated organism also replicates at the same rate. at hour one, there is one organism. at hour two, there are five more organisms. how many total organisms are there at hour seven? 2,801 19,531 19,607 97.655