Find the length of the third side of the right triangle. Where appropriate, give both an exact answer and an approximation to three decimal places.
A. 
? 2.646
B. 371
C. 
? 37.802
D. 
? 19.261
Answer: D
Mathematics
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if f(x) = -ln(cos x)
A. 1
B. - 
C. - 
D. 
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Use the given matrices to compute the given expression.Let B = 
. Find -3B.
A. 
B. 
C. 
D. 
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Solve the problem. Round to the nearest tenth, if necessaryThe part is 50 and the whole is 10. Find the percent.
A. 250% B. 500% C. 20% D. 50%
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Use the given trigonometric function value of ? to find the requested trigonometric function value of the acute angle ?. Rationalize the denominators where necessary.cos ? = 
Find sec ?.
A. 
B. 
C. 
D. 
Mathematics