Which of the following figures is mapped onto itself by a 90 deg rotation around the point of intersection of its diagonals?
(a) a rhombus.
(b) a rectangle.
(c) A parallelogram.
(d) A pentagon.
(e) None of these is correct.
(e) None of these is correct.
You might also like to view...
Factor completely, if possible.4m2 - 
A. 
B. 
2
C. 
2
D. Prime
Find the perimeter of the figure.
A. 52 cm B. 99 cm C. 104 cm D. 14 cm
Provide an appropriate response.To make a rope ladder, Alyssa needs two lengths of nylon rope for the sides of the ladder and six shorter lengths of rope for the rungs. The side pieces have length (2x + 1) meters and the rung pieces have length (x - 1.4) meters. Write a simplified algebraic expression that represents the total length of nylon rope that Alyssa would need to make a rope ladder and use it to find the total length if x = 2.4.
A. (10x - 0.4) meters; 23.6 meters B. (3x - 0.4) meters; 6.8 meters C. (10x + 2.4) meters; 26.4 meters D. (10x - 6.4) meters; 17.6 meters
Write the solutions that can be read from the simplex tableau.
A. s2 = 13, s1 = 18, s3 = 17, z = 7; x1, x2 = 0 B. s2 = 13, s1 = 18, x1 = 17, z = 7; x2, s3 = 0 C. s3 = 13, s1 = 18, x1 = 17, z = 7; x2, s2 = 0 D. s2 = 13, s3 = 18, x1 = 17, z = 7; x2, s1 = 0