Use the fact that the trigonometric functions are periodic to find the exact value of the expression. Do not use a calculator.csc 540°
A. -1
B. 2
C. 
D. undefined
Answer: D
Mathematics
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Solve the given equation by finding the unknown value.15 - ? = 12
A. 1 B. 15 C. 9 D. 3
Mathematics
Find the complete solution of the system.  figure 1.png)
a. (1,0,1) b. (5,0,1) c. (0,1,-1) d. (0,-2,2) e. none
Mathematics
Solve the problem.Find the height of a pine tree that casts a 48-foot shadow on the ground assuming that the angle of elevation from the point on the ground at the tip of the shadow to the sun is 63°. Round your answer to the nearest foot.
A. 94 ft B. 43 ft C. 24 ft D. 22 ft
Mathematics
Solve the exponential equation and approximate the result, correct to three decimal places.6 ? 3x - 4 = 12
A. 0.893 B. 1.631 C. 0.262 D. 0.959
Mathematics