Solve the problem.From a boat on the river below a dam, the angle of elevation to the top of the dam is 21°31'. If the dam is 437 feet above the level of the river, how far is the boat from the base of the dam (to the nearest foot)?
A. 1108 ft
B. 1078 ft
C. 1098 ft
D. 1088 ft
Answer: A
Mathematics
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Sketch the given surface.x2 + y2 = z2
What will be an ideal response?
Mathematics
What part of the set of objects is shaded?
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A building has an entry with the shape of a parabolic arch 92 ft high and 10 ft wide at the base. Find an equation for the parabola if the vertex is put at the origin of the coordinate system.A = 92 ftB = 10 ft
A. x2 = -1.1y B. y2 = -1.1x C. x2 = -0.3y D. y2 = -0.3x
Mathematics
Write an equation in standard form for a line passing through the pair of points.(-4, -6) and (0, -9)
A. 2x + 9y = -81 B. -3x - 4y = 36 C. 3x - 4y = 36 D. -2x - 9y = -81
Mathematics