Graph the equation using a graphing utility. Use a graphing utility to approximate the intercepts rounded to two decimal places, if necessary. Use the TABLE feature to help establish the viewing window.y = -2x + 15
A. (0, 15), (-7.5, 0)
B. (0, -15), (7.5, 0)
C. (0, 15), (-7.5, 0), (7.5, 0)
D. (0, 15), (7.5, 0)
Answer: D
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Use an integer to express the number.In one state, the highest point is 4278 feet above sea level.
A. -4278 B. 4278
Solve the given differential equation.D4y + 32 D2y + 256y = 0
A. y = (C1 + C2x) sin 4x + (C3 + C4x) cos 4x B. y = (C1 + C2x) sin x + (C3 + C4x) cos x C. y = C1 sin 4x + C2 cos 4x D. y = (C1 + C2x) sin 4x + (C3 + C4x) ex
Solve the problem.Evaluate 
by transforming to cylindrical or spherical coordinates.
A. 
B. 
C. 
D. 
Solve the problem.A boat is towed toward a dock by a cable attached to a winch that stands 15 ft above the water level (see figure). Let ? be the angle of elevation of the winch and let z be the length of the cable as the boat is towed toward the dock. Compute 
when 
A. 
= -0.00030
B. 
= -0.00418
C. 
= -0.26287
D. 
= -0.00446