Solve the problem.A hot-air balloon is rising vertically 13 ft/sec while the wind is blowing horizontally at 6 ft/sec. Find the angle that the balloon makes with the horizontal.
A. 65.2°
B. 51.3°
C. 47.4°
D. 24.8°
Answer: A
Mathematics
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Verify that the given equation is an identity.tanh 2x = 
What will be an ideal response?
Mathematics
Write the number in trigonometric form. Let 0° ? ? < 360°.4
A. 4(cos 90° + i sin 90°) B. 4(cos 0° + i sin 0°) C. 4(cos 270° + i sin 270°) D. 4(cos 180° + i sin 180°)
Mathematics
Simplify the fraction to lowest terms.- 
A. - 
B. - 
C. 
D. - 
Mathematics
Solve by graphing.In one U.S. town the annual consumption y of beef (in kg per person) can be estimated by the linear equation 
where x is the number of years since 1975. Graph the equation and use the graph to estimate the beef consumption in the year 1995. 
A. 30 kg per person B. 13 kg per person C. 16 kg per person D. 10 kg per person
Mathematics