Find the domain of the composite function f?g.f(x) = x2 - 1, g(x) = 2x + 3
A. [1, ?)
B. [0, ?)
C. (-?, ?)
D. (-1, 1)
Answer: C
Mathematics
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Solve the problem.The formula T = .07D1.5can be used to approximate the duration of a storm, where T is the time in hours and D is the diameter of the storm in miles. A storm that is 6.8 miles in diameter is heading toward a city. How long can the residents of the city expect the storm to last? Round your answer to the nearest hundredth of an hour.
A. 1.24 hr B. 2.47 hr C. 0.67 hr D. 2.77 hr
Mathematics
Find the asymptotes of the hyperbola.4y2 - 16x2 - 64 = 0
A. y = ± 
x
B. y = ± 
x
C. y = ± 4x
D. y = ± 2x
Mathematics
Perform the indicated operation.
A. 3.517 B. 2.683 C. 2.517 D. 4.000
Mathematics
Solve the equation.3x2 - 6x + 3 = 0
A. 0, 1 B. -1 C. -1, 1 D. 1
Mathematics