If the sides of a rectangular solid are as shown, and 
, determine the angle, ?, between the diagonal of the base of the solid and the diagonal of the solid. Round answer to two decimal places.
A. 21.91o
B. 24.09o
C. 17.21o
D. 26.28o
E. 19.86o
Answer: B
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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 = 3 cos t, y = 3 sin t, ? ? t ? 2?
A. x2 + y2 = 9
Counterclockwise from (3, 0) to (3, 0), one rotation
B. x2 + y2 = 9
Clockwise from (3, 0) to (-3, 0)
C. x2 + y2 = 1
Clockwise from (1, 0) to (1, 0), one rotation
D. x2 + y2 = 9
Counterclockwise from (-3, 0) to (3, 0)
Solve the system by graphing.
A. No solution B. Infinite number of solutions C. (5, 9) D. (0, 0)
Graph the integers on a number line.-7, -5, -3, -1 
A. 
B. 
C. 
D. 
Round the number as indicated.49,820,289 to the nearest million
A. 49,900,000 B. 49,820,000 C. 50,000,000 D. 49,000,000