Determine in decimal degrees

Determine in decimal degrees, 0° <  < 90°. Round results to an appropriate number of significant digits.sec = 5.86
A) 80.20° B) 79.8° C) 80.2° D) 79.82°
in Algebra 2 Answers by Level 1 User (120 points)

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1 Answer

If the secant is 5.86 the cosine is 1/5.86=0.17065 approx. Therefore the angle is 80.1745 approx and this rounds up to 80.2 degrees, so C is the correct answer.
by Top Rated User (1.2m points)

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