Use a calculator to find the following. Round your answer to four places past the decimal point.
? 
sin 25°40'
? 

A. 0.5561
B. 0.6191
C. 0.4331
D. 0.4481
E. 0.5781

Answer: C

Mathematics

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Solve the problem. Snell's Law states that  Use this law to find the requested value. If       find   Round your answer to the nearest degree.

A. ?2 = 32° B. ?2 = 34° C. ?2 = 35° D. ?2 = 31°

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Mathematics

Solve the equation.|7x + 5| + 3 = 5

A. {, 1}
B. {- , - }
C. {- , - 1}
D. no solution

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Mathematics

Solve the problem.If a rock falls from a height of 80 meters on Earth, the height H (in meters) after x seconds is approximately  H(x) = 80 - 4.9x2.When does the rock strike the ground? Round to the nearest hundredth, if necessary.

A. 16.33 sec B. 3.33 sec C. 4.04 sec D. 1.83 sec

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Mathematics

Find the slope-intercept form of the equation of the line with the given properties.Horizontal; containing the point (4, 10)

A. x = 10 B. y = 10 C. y = 4 D. x = 4

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Mathematics