Find the reference angle for the given angle.390°
A. 45°
B. 90°
C. 30°
D. 60°
Answer: C
Mathematics
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Solve the problem.The roof of a building is in the shape of the hyperbola 
where x and y are in meters. Refer to the figure and determine the height h of the outside walls.
a = b = 4 m
A. 9.1 m B. 83 m C. 63 m D. 67 m
Mathematics
The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. 
At what time was the temperature the highest?
A. 2 p.m. B. 5 p.m. C. 11 a.m. D. 1 p.m.
Mathematics
Provide an appropriate response.Find all complex square roots of z = 4 + 4
i. Write each root in rectangular form.
A. 
- 
i, - 
+ 
i
B. - 
- 
i, 
- 
i
C. 
+ 
i, - 
- 
i
D. 
+ 
i, - 
- 
i
Mathematics
Evaluate the expression.(g ? g)(9) when f(x) = 4x - 4 and g(x) = 2x2 - 4
A. 49,924 B. 24,960 C. 312 D. 55,116
Mathematics