Add or subtract as indicated. Write the answer in simplest form.
- 
A. 
B. 
C. 
D. 
Answer: C
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Find the derivative.y = 3 cos3(3x + 3)
A. -3 sin3(3x + 3) B. -81 sin2(3x + 3) C. 9 cos2(3x + 3) sin (3x + 3) D. -27 cos2(3x + 3) sin (3x + 3)
Determine the equation of the horizontal asymptote for the graph of this function, and state the domain and range of this function.f(x) = e3x - 1
A. Horizontal asymptote: y = 3; Domain: (-?, ?), Range: (3, ?) B. Horizontal asymptote: y = 1; Domain: (-?, ?), Range: (1, ?) C. Horizontal asymptote: y = 0; Domain: (-?, ?), Range: (0, ?) D. Horizontal asymptote: y = -1; Domain: (-?, ?), Range: (-1, ?)
Multiply or divide. Write the answer in lowest terms.
÷ 
A. z - 9
B. 
C. 
D. 
Solve the problem.A bridge is built in the shape of a parabolic arch. The bridge arch has a span of 190 feet and a maximum height of 40 feet. Find the height of the arch at 15 feet from its center.
A. 39 ft B. 4 ft C. 13.4 ft D. 0.2 ft