Find the domain of the function.
A. {x|7 ? x ? 31}
B. {x|-7 ? x < 7 or 7 < x ? 31}
C. {x|x ? -7}
D. {x|-7 ? x ? 31}
Answer: D
Mathematics
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Write the expression in the form a + bi.
A. 
+ 
i
B. - 
+ 
i
C. 
+ 
i
D. 
- 
i
Mathematics
Write the number in words.480,050,273
A. four hundred eighty million, five hundred thousand, two hundred seventy-three B. four million, eight hundred five thousand, two hundred seventy-three C. forty-eight million, fifty thousand, two hundred seventy-three D. four hundred eighty million, fifty thousand, two hundred seventy-three
Mathematics
Evaluate the expression for the given replacement values.x - y
for x = -4, y = -22
A. -18 B. 26 C. 18 D. -26
Mathematics
Determine which of the following point lies on the graph of the equation.
?
?
A. (3, 1) B. (2, 3) C. (4, 1) D. (2, 1) E. (2, 2)
Mathematics