Use the determinant feature of a graphing calculator to solve the system by Cramer's rule . (Round to one decimal place.)2.2x + 14.0y + 2.9z = 4.63.6x - 7.0y - 0.6z = -4.53.4x + 16.7y + 4.9z = 11.5
A. {(-1.4, -0.5, 4.9)}
B. {(3.4, 1.2, -12.3)}
C. {(-5.6, -1.9, 20.1)}
D. {(-2.0, -0.7, 7.4)}
Answer: A
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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)
Determine whether the following statement is true or false.56 is a factor of 7.
A. True B. False
Use the elimination method by addition to find the solution for the following system.
A. x = 1, y = 0
B. x = 0, y = - 
C. x = 5k + 1, y = k, for any real number k.
D. The system is inconsistent.
Rewrite the exponential equation 
in logarithmic form.
a. 
b. 
c. 
d. 