Write an inequality using the variable x that corresponds to the set graphed on the number line.
A. x < 4
B. x ? 4
C. x ? 4
D. x > 4
Answer: D
Mathematics
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Complete the magic (addition) square. A magic square has the property that the sum of the numbers in any row, column, or diagonal is the same.Use each number 19, 20, 21, 22, 23, 24, 25, 26, and 27 once.
A. 
B. 
C. 
D. 
Mathematics
Factor completely.20x4 - 15x2 + 12x2 - 9
A. (20x2 - 3)(x2 + 3) B. (5x2 - 3)(4x2 + 3) C. (5x2 + 3)(4x2 - 3) D. (5x4 + 3)(4x - 3)
Mathematics
Provide an appropriate response.Rewrite the following imaginary number using the letter i: 
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find all real numbers that satisfy the equation.sin x = 0
A. {x|x = 0 + k?}
B. 
C. 
D. {x|x = 0 + 2k?}
Mathematics