Refer to the figure in which O is the center of the circle, 
is a tangent, m?PCE = 20° m?Boc = 80°, PE = 10 ft, PD = 12 ft, ER= 4 ft, and BR= 5 ft.
105°
Mathematics
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Solve the problem.Find the equation of the tangent line to the curve 
- 
= 1, at the point 
A. -
x + 81
y = 81
B. 
x - 81y = 74
C. 
x + 9y = 74
D. -
x + 81y = 74
Mathematics
Find AP when Pin = 695 mW and PO = 13.9 W.
a. 9 dB b. 13 dB c. 15 dB d. 20 dB e. 26 dB
Mathematics
Find the probability.A bag contains 13 balls numbered 1 through 13. What is the probability of selecting a ball that has an even number when one ball is drawn from the bag?
A. 
B. 
C. 6
D. 
Mathematics
Graph the solution set of the system of linear inequalities. If the system has no solutions, state this.
A. 
B. 
C. 
D. 
Mathematics