Determine which value(s), if any, must be excluded from the domain of the variable in the expression.
A. x = 4
B. x = 2, x = -2
C. x = 2
D. x = 
Answer: B
Mathematics
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Perform the operation(s). (Write fractional answers in simplest form.)
?
?
A. 26
B. 
C. 15
D. 
E. 11
Mathematics
Name the property that justifies the statement. All variables represent real numbers.-1(8.0 + 
) = -1 ? 8.0 + (-1)? 
A. Associative property of multiplication B. Associative property addition C. Distributive property of multiplication over addition D. Distributive property of addition over multiplication
Mathematics
Divide. Simplify if possible.
÷ (x + 5)
A. - 
B. -1
C. -(x - 5)(x + 5)
D. - 
Mathematics
Use multiplication shortcuts to find the product.60 ? 900
A. 54,000 B. 15,000 C. 540,000 D. 5400
Mathematics