Classify the angle as acute, right, obtuse, or straight.
A. straight
B. right
C. acute
D. obtuse
Answer: C
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Find the length of the parametric curve defined over the given interval.x = 1 - t, y = 
; 0 ? t ? 
Give your answer in exact form.
A. sin-1
B. 25 sin-1
C. cos-1
D. 10 cos-1
Provide an appropriate response.
Find the equation of the line that is perpendicular to the line y = - 
x and passes through the point (2, -1). Write the equation in standard form.
A. 4x - 3y = 11 B. 4x - 3y = 5 C. 4x + 3y = 11 D. 3x + 4y = 2
Give the coordinates of the vertex and graph the equation in a window that includes the vertex.y = x2 - 2x - 8 
A. Vertex: (-1, -7)
B. Vertex: (-1, -9)
C. Vertex: (1, -9)
D. Vertex: (1, 7)
Find the slope-intercept equation for the tangent line to the graph of f at the given point.f(x) = x2 + 5x at (4, 36)
A. y = 13x - 72 B. y = 13x - 32 C. y = 2x + 5 D. y = 2x - 5