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Earn +20 ptsQ: 23 is the difference of a number C and 21?
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How many triangles are formed by the diagonals in a 21 sided polygon?
The number of triangles formed by the diagonals of a 21 sided polygon is C(21,3) = 21x20x19/3x2x1 = 1,330.
What is 23 c?
23C
What is 23 c equals -18?
41
What is the answer to c over 15 equals 21 over 9?
c/15 = 21/9 → c/15 x 15 = 21/9 x 15 → c = (7x3)/(3x3) x (3x5) → c = 7 x 5 = 35
What is the difference between 15 degrees Celsius and -8 degrees Celsius?
23
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