Perform the operation indicated. Simplify.
- 
A. 
B. 
C. 
D. 
Answer: B
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The equation gives the position s = f(t) of a body moving on a coordinate line (s in meters, t in seconds). s (m)
When is the body moving backward?
A. 8 < t < 9 B. 8 < t ? 10 C. 2 < t < 3, 4 < t < 5, 7 < t < 9 D. 2 < t < 3, 4 < t < 5, 7 < t < 8
Determine the type of graph paper on which the graph of the given function is a straight line.y(4x) = 5
A. Semilog B. Regular rectangular C. Log-log
Provide an appropriate response.Solve the equation: -5x = 20
A. x = 
B. x = 4
C. x = -4
D. x = 25
Solve.Beaufort Canal has a semi-elliptical cross section with a width W = 74 feet and a depth D = 14 feet (see figure). The keel on Sasha's yacht rides 6 feet below the water line at the keel's deepest point. If the yacht travels parallel to the canal, and assuming the canal is completely full of water, how close can Sasha bring the yacht's centerline to the edge of the canal without running aground? (The keel is the very bottom of a boat hull and runs directly below the boat's centerline from front to back.)
A. 5 ft B. 18 ft C. 6 ft D. 19 ft