Find the trigonometric function value for the angle shown.sec ?
A. sec ? = 
B. sec ? = 
C. sec ? = 
D. sec ? = 
Answer: C
Mathematics
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Use a calculator to find a decimal approximation for the indicated function values. Round your answer to four decimal places.sec 2.57
A. -0.8410 B. -0.6432 C. -1.1890 D. 0.5410
Mathematics
Solve the problem.Richard's team wants to plant 774 trees in 6 months. How many trees per month do they need to plant?
A. 135 trees B. 139 trees C. 129 trees D. 258 trees
Mathematics
Using a sum or difference identity, write the following as an expression involving functions of x.sin 
A. -cos x
B. 
cos x + 
sin x
C. 
cos x - 
sin x
D. sin x
Mathematics
Solve the equation using the quadratic formula. Simplify irrational solutions, if possible.x2 + 7x + 3 = 0
A. 
B. 
C. 
D. 
Mathematics