Add or subtract as indicated.(r + 4s - 4) + (3r + s) + (s - 6)
A. 2r + 6s - 10
B. 3r + 4s - 10
C. 4r + 6s - 10
D. 4r + 5s - 10
Answer: C
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Parametric equations and 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 = 49t2, y = 7t, -? ? t ? ?
A. y = x2; Entire parabola, left to right (from
2nd quadrant to origin to 1st quadrant)
B. y = x2; Entire parabola, right to left (from
1st quadrant to origin to 2nd quadrant)
C. x = y2; Entire parabola, bottom to top (from
4th quadrant to origin to 1st quadrant)
D. x = y2; Entire parabola, top to bottom (from
1st quadrant to origin to 4th quadrant)
Find the slope of the line and write the slope as a rate of change. Don't forget to attach the proper units.The graph shows the total cost y (in dollars) of owning and operating a mini-van where x is the number of miles driven.
A. $4.25 per mile B. cannot be determined C. $21.00 per mile D. $0.24 per mile
Find the LCM of the given polynomials.3x - 9, x2 - 3x
A. 3x2 - 9 B. 3x(x - 3) C. 3x - 3 D. 3x2 - 3
The figure shows a simplified model of the first Ferris wheel. The radius of the first Ferris wheel was 125 feet, and the distance from the ground to the bottom of the wheel was 14 feet. If 
is the central angle formed as a rider moves from position 
to position
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.
?
?
Apply the rules regarding the use of significant digits when determining your answer.
?
__________ ft
Fill in the blank(s) with the appropriate word(s).