Use the element method for proving a set equals the empty set to prove that
For all sets A and C, (A ? C) ? (C ? A) = ?.
Mathematics
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Perform the operation. Write the answer as a fraction in lowest terms.6
- 2
A. 
B. 25
C. 
D. 
Mathematics
Express the number in scientific notation.870,000
A. 8.7 × 105 B. 8.7 × 104 C. 8.7 × 10-4 D. 8.7 × 10-5
Mathematics
Write the phrase as a variable expression. Use x to represent "a number."the difference of Six and a number
A. x - 6
B. 
C. 6 - x
D. 6x
Mathematics
Find the intercepts for the graph of the equation.x + y = 1
A. (1, 0) (0, 1) B. (1, 2) (-1, 1) C. (0, -1) (0, 2) D. (-1, 0) (2, 0)
Mathematics