Use a graphing calculator or computer to determine which of the given viewing windows displays the most appropriate graph of the specified function.f(x) = 7 + 7x - x3
A. [-10, 10] by [-10, 5]
B. [-4, 5] by [-5, 5]
C. [-4, 5] by [-15, 25]
D. [-10, 20] by [-50, 50]
Answer: C
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Find IT and é in the circuit below if IR = 10 mA and IC = 10 mA.
a. é = 45ø, IT = 14.14 mA
b. é = 45ø, IT = 7.07 mA
c. é = 60ø, IT = 14.14 mA
d. é = 60ø, IT = 20 mA
e. é = 45ø, IT = 20 mA
Graph the function.y = sec x
A. 
B. 
C. 
D. 
Provide an appropriate response.If a, b, and c are real numbers, is this statement true or false? 
A. True B. False
Provide an appropriate response.Given f(x, y), which of the following statements is true?(i) fx is the rate of change of f as x and y change.(ii) fx is the rate of change of f as x changes, but y stays fixed.(iii) fy is the rate of change of f as y changes, but x stays fixed.(iv) fx is the rate of change of f as f changes, but x stays fixed.
A. Only (iii) is correct. B. Both (ii) and (iii) are correct. C. Only (i) is correct. D. (iv) could be correct under certain conditions.