Find the LCD of the given rational expressions.
; 
A. t + 7
B. 54
C. t
D. t(t + 7)
Answer: D
Mathematics
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Simplify by combining like terms.
y - 
y
A. 
y
B. 
y
C. 
y
D. 
y
Mathematics
Tell whether the angle is acute, right, obtuse, or straight.
A. Obtuse B. Straight C. Acute D. Right
Mathematics
Use the symbolic definition of absolute value to simplify the expression.
A. 0 B. 1.5 C. -1.5 D. None of the above
Mathematics
Add or subtract. Simplify by combining like radical terms, if possible.
+ 5
+ 2
A. 30
B. 30
C. 7
D. 7
Mathematics