Simplify
Mathematics
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Perform the indicated operation.3 - 12
A. 9 B. -15 C. -9 D. 15
Mathematics
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.
Mathematics
Use the formula for the general term (the nth term) of a geometric sequence to find the indicated term of the sequence with the given first term, a1, and common ratio, r.Find a11 when a1 = -6, r = -3.
A. -354,290 B. 1,062,882 C. -36 D. -354,294
Mathematics
Graph the system of inequalities, and find the coordinates of the vertices.x + 2y ? 10,2x + y ? 8,x ? 0,y ? 0
A. 
B. 
C. 
D. 
Mathematics