Add.
A. 326
B. 227
C. 325
D. 426
Answer: C
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Parametric equations and a parameter interval for the motion of a particle in the xy-plane are given. Identify the particle's path by finding a Cartesian equation for it. Graph the Cartesian equation. Indicate the portion of the graph traced by the particle and the direction of motion.x = 16t2, y = 4t, -? ? t ? ?
A. x = y2
Entire parabola, bottom to top (from fourth quadrant to origin to first quadrant)
B. y = x2
Entire parabola, right to left (from first quadrant to origin to second quadrant)
C. x = y2
Entire parabola, top to bottom (from first quadrant to origin to fourth quadrant)
D. y = x2
Entire parabola, left to right (from second quadrant to origin to first quadrant)
Find the product.(-9)(-9)
A. 91 B. -81 C. -91 D. 81
Decide whether or not the ordered pair is a solution of the equation.5x + 4y = 35; (3,5)
A. Yes B. No
Write the contrapositive of the statement. q ? (p ? r)
A. ~(p ? r) ? ~q B. (p ? r) ? q C. ~q ? ~(p ? r) D. q ? (p ? r)