Solve the problem.A radio transmission tower is 120 feet tall. How long should a guy wire be if it is to be attached 8 feet from the top and is to make an angle of 22° with the ground? Give your answer to the nearest tenth of a foot.
A. 129.4 ft
B. 120.8 ft
C. 299.0 ft
D. 320.3 ft
Answer: C
Mathematics
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Find the derivative of y with respect to x, t, or ?, as appropriate.y = ln 4x
A. - 
B. - 
C. 
D. 
Mathematics
Simplify.(9)(8) - (3)(2) + (-30)
A. 36 B. -36 C. 96 D. 48
Mathematics
Solve.How long will it take for the population of a certain country to double if its annual growth rate is 
? Round to the nearest year.
A. 74 yr B. 26 yr C. 1 yr D. 11 yr
Mathematics
Find an equation for the hyperbola described. Graph the equation.Foci at (0, - 
) and (0, 
); asymptote the line y = - 
x 
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Mathematics