Solve the polynomial inequality. Express the solution in interval notation.(x - 1)(x - 7) ? 0
A. (-?, 1] ? [7, ?)
B. [1, 7]
C. (1, 7)
D. (-?, 1) ? (7, ?)
Answer: B
Mathematics
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Find an equation of variation for the given situation.y varies directly as the square of x, and y = 22.05 when x = 7.
A. y = 0.49
B. y = 0.5x2
C. y = 0.45x2
D. y = 2.02x2
Mathematics
Solve the equation for x. Write your answer as an improper fraction if necessary. 1.3x + 2.6 = 0.8x + 1.75
A. x = -1.87 B. x = -1.8 C. x = 0.588 D. x = -1.7
Mathematics
Solve the equation.
+ 
= -1
A. {0}
B. 
C. ?
D. {5}
Mathematics
Name the property illustrated by the statement.
= 0
A. Inverse Property of Multiplication B. Commutative Property of Multiplication C. Identity Property of Multiplication D. Division Property
Mathematics