Which of the following are true?
(a) All squares are rhombi.
(b) All rectangles are parallelograms.
(c) All parallelograms with congruent diagonals are rectangles.
(d) All rhombi with congruent diagonals are squares.
(e) Both (a) and (b) are correct.
(f) Answers (a)–(d) are all correct.
(d) All rhombi with congruent diagonals are squares.
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Evaluate the integral.
A. 
B. 1
C. Diverges
D. 
Find the center (h, k) and radius r of the circle. Graph the circle.2x2 + 2y2 - 8x + 16y + 22 = 0
A. (h, k) = (-2, 4); r = 3
B. (h, k) = (2, -4); r = 3
C. (h, k) = (2, -4); r = 9
D. (h, k) = (-2, 4); r = 9
Simplify the expression. Assume all variables represent positive real numbers.
A. -4 B. 16 C. not a real number D. 4
Find the ratio of the corresponding sides of the given similar triangles. Write the ratio in simplest form.
A. 
B. 
C. 
D. 