Given the perimeter and either the length or width of a rectangle, find the unknown measurement by using the appropriate formula.The perimeter is 42 feet and the length is 11 feet.
A. 10 feet
B. 19 feet
C. 20 feet
D. 8 feet
Answer: A
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Use the substitution formula to evaluate the integral.
A. - 
B. 
C. - 
D. 
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 = 3t + 2, y = 9t + -2, -? ? t ? ?
A. y = 3x - 8
Entire line, from left to right
B. y = 3x + 8
Entire line, from right to left
C. y = 3x + 8
Entire line, from left to right
D. y = 3x - 8
Entire line, from right to left
Determine two pairs of polar coordinates for the point with 0° ? ? < 360°.(-9, 3
)
A. (6
, 150°), (-6
, 330°)
B. (6
, 60°), (-6
, 300°)
C. (6
, 30°), (-6
, 330°)
D. (6
, 120°), (-9
, 240°)
Factor the expression.
?
?
A. 
B. 
C. 
D. 
E. not factorable