Solve for the variable.
= 4x
A. x = -2
B. x = 2
C. x = 1
D. No solution
Answer: B
Mathematics
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Solve the problem.The price of a necklace is $18.99. If the salesperson's rate of commission is 9%, how much commission is earned on the sale of the necklace? Round to the nearest cent.
A. $17.09 B. $1.72 C. $17.19 D. $1.71
Mathematics
Find the domain.f(x) = 
A. {x|x ? 13} or [13, ?) B. {x|x ? 13} or (-?, 13] C. All real numbers or (-?, ?) D. {x|x ? -13} or (-?, -13]
Mathematics
Provide an appropriate response.For f(x) = x2 - 
x + 3 and g(x) = x3 - 
x2 + x, find (f + g)(x).
A. x3 + 
x2 + 
x + 3
B. 2x3 - 
x2 + 4x
C. x3 + 
x2 + 
x + 3
D. 2x3 - 
x2 + 4x
Mathematics
Determine whether the statement is true or false.The sum of a positive number and a negative number is always a negative number.
A. True B. False
Mathematics