Factor the perfect square trinomial.
a. 
b. 
c. 
d. 
e. 
b.
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Parametric equations and a value for the parameter t are given. Find the coordinates of the point on the plane curve described by the parametric equations corresponding to the given value of t.x = (20 cos 30°)t, y = 3 + (20 sin 30°)t - 15t2; t = 3
A. (60
, 69)
B. (-30
, 57)
C. (30
, -102)
D. (30
, -12)
Subtract the real numbers. Write any improper fraction as a whole or mixed number where appropriate.0.77 - (-0.09)
A. 0.68 B. 0.0693 C. 0.96 D. 0.86
Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function.f(x) = -7x4 - 8x3 - 2x2 - 2x + 3
A. 0 or 2 positive; 0 or 2 negative B. 1 positive; 2 negative C. 1 positive; 1 or 3 negative D. 1 positive; 1 negative
Give the domain of the function.f(x) = (-x - 9)1/2
A. [-9, ?) B. (-?, -9] C. (-?, 9] D. [9, ?)