Simplify the expression.
A. - 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the problem.How many liters of a 40% alcohol solution must be mixed with 70 liters of a 90% solution to get a 50% solution?
A. 28 liters B. 350 liters C. 280 liters D. 35 liters
Mathematics
State whether the matrix is in reduced form or not in reduced form.
A. Reduced Form B. Not Reduced Form
Mathematics
First, write the value(s) that make the denominator(s) zero. Then solve the equation.
+ 4 = 
A. x ? -7; {-1} B. x ? 7; ? C. x ? 7; {-1} D. x ? -7; {17}
Mathematics
Write the word phrase as an algebraic expression. Use x to represent the unknown value.The quotient of 6 and a number, minus the product of 4 and the number
A. 
B. 
- 4x
C. 4x - 
D. 
- 4x
Mathematics