Use a calculator to give the real number value. Round the answer to 7 decimal places.y = cos-1(-0.3907)

A. 2.0079383
B. -1.1698423
C. 1.9721882
D. 1.9206367


Answer: C

Mathematics

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A. 1 + 
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Find the x-intercept(s) of the graph of the equation. Graph the equation.y = x2 - 5x + 1

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