Find the value of d2y/dx2 at the point defined by the given value of t.x = tan t, y = 3 sec t, t = 
A. - 
B. - 
C. 3
D. 
Answer: B
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Determine whether the given point is in the solution set to the given system.(1, 4)x - 3y = -11x2 + y2 = 17
A. Yes B. No
Solve the problem.A building 250 feet tall casts a 50 foot long shadow. If a person stands at the end of the shadow and looks up to the top of the building, what is the angle of the person's eyes to the top of the building (to the nearest hundredth of a degree)? (Assume the person's eyes are 5 feet above ground level.)
A. 78.69° B. 11.78° C. 78.22° D. 78.47°
Use a determinant to find y such that (8, -20), (16, y), and (20, -8) are collinear.
A. y = -12 B. y = 20 C. y = -44 D. y = 4 E. y = -8
By definition, an "and" statement is true only when the statements before and after the "and" connective are both true. Use this definition to determine whether the given statement is true or false.5 ? {1, 2, 3,.....} and -9 ? {1, 2, 3,....}
A. True B. False