Determine if the graph should be modeled by either y = a sin bt + k or y = a cosbt + k , Then find a, b, and k.


Mathematics

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Provide an appropriate response.Subtract the fractions and reduce:  - 

A.
B.
C.
D.

Mathematics

Find the angle between the given vectors to the nearest tenth of a degree.u = i + j, v = -i + 8j

A. 13.6° B. 68.9° C. 15.3° D. 27.8°

Mathematics

Fill in the table to solve the problem. 

A. amount of rain: 7.5 in.; rain per day: 0.6 in. B. amount of rain: 7.5 in.; rain per day: 1.2 in. C. amount of rain: 5.9 in.; rain per day: 1.2 in. D. amount of rain: 5.9 in.; rain per day: 29.5 in.

Mathematics

Write as the sum and/or difference of logarithms. Express powers as factors. log5

A. log514 ?  log5m ÷ log5y
B. log5y - log514 -  log5x
C. log5(14) - log5y
D. log514 +  log5x - log5y

Mathematics