Solve the system using matrices. x - 2y = 17-2x - 3y = 15
A. (-3, -6)
B. (3, -7)
C. (2, -6)
D. dependent system
Answer: B
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Find the equation of the parabola which has the given vertex V, which passes through the given point P, and which has the specified axis of symmetry.V(0, 0), P(-3, -7), horizontal axis of symmetry
A. y2 = - 
x
B. y2 = - 
x
C. x2 = - 
y
D. y2 = - 
x
Find the infinite sum accurate to three decimal places.
A. 0.010 B. -0.010 C. -0.007 D. 0.007
The position vector of a particle is r(t). Find the requested vector.The velocity at t = 4 for r(t) = (2 - 5t2)i + (7t + 3)j - e-5tk
A. v(4) = 40i + 7j + 5e-20k B. v(4) = -40i + 7j + 5e-20k C. v(4) = -20i +7j + 5e-20k D. v(4) = -40i + 7j - 5e-20k
Solve the polynomial equation by factoring and then using the zero product principle.5x4 = 135x
A. {-3, 0, 3} B. {0, 3} C. {0, 5, 3} D. {0}