Find all numbers u (if any) so that the given point (u, y) or (x, u) is on the unit circle.
A. ± 
B. ± 
C. ± 
D. ± 
Answer: B
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Evaluate the work done between point 1 and point 2 for the conservative field F.F = 3xi + 3yj + 3zk; P1(3, 1, 4) , P2(6, 3, 8)
A. W = - 
B. W = 
C. W = 
D. W = 0
Two sides and an angle are given. Determine whether the given information results in one triangle, two triangles, or no triangle at all. Solve any triangle(s) that results.a = 7, b = 9, B = 49°
A. two triangles A1 = 76.01°, C1 = 54.99°, c1 = 7.60 or A2 = 103.99°, C2 = 27.01, c2 = 12.14 B. one triangle A = 35.94°, C = 95.06°, c = 11.88 C. one triangle A = 76.01°, C = 54.99°, c = 7.60 D. no triangle
Represent the vector in the form v = ai + bj whose magnitude and direction angle are given.
= 10; ? = 120°
A. v = 5
i - 5j
B. v = -5i + 5
j
C. v = -5
i + 5
j
D. v = 5i - 5
j
Find the linear function that is the best fit for the given data. Round decimal values to the nearest hundredth, if necessary.
A. y = 0.90x - 3.79 B. y = 0.85x - 2.79 C. y = 0.80x - 3.79 D. y = 0.95x - 2.79