Provide an appropriate response.True or false? If k = 0, then x2 = k will have exactly one real solution. If false, give the correct number of real solutions.
A. False; three
B. False; two
C. False; zero
D. True
Answer: D
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Given that the x- and y-coordinates of a moving particle are given by the indicated parametric equations, find the magnitude and direction of the velocity for the specific value of t.x = 
, y = 
, t = 5
A. 0.77, 131.2° B. 0.78, 131.2° C. 0.77, 41.2° D. 0.78, 41.2°
Sketch the complete graph of the function.y = 8x2 - 32x + 38
A. 
B. 
C. 
D. 
Assume that, at a certain college, 33% of all physics majors belong to ethnic minorities. Given a random sample of 10 physics majors, find the probability of the indicated event. Round your answer as appropriate.Only the last 4 do not belong to an ethnic minority.
A. .09046 B. .00026 C. .20151 D. .01186
Solve the problem.Find the acute angle, to the nearest degree, between the lines l1 and l2.l1: 
l2: 
.
A. 45° B. 173° C. 30° D. 135°