Multiply and simplify. Assume that all variables represent positive real numbers.(4
+ 9 )(
- 10)
A. 4x + 31
- 90
B. 4x + 49
- 90
C. 4x - 31
+ 90
D. 4x - 31
- 90
Answer: D
Mathematics
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Decompose into partial fractions.
A. 
- 
B. 
- 
C. 
- 
D. 
+ 
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Write as a proportion.If 3 pounds of steak costs $18, then 4 pounds will cost $24.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
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If y varies inversely as x, find the inverse variation equation for the situation.y = 
when x = 40
A. y = 
B. y = 
C. y = 
D. y = 
x
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Translate the English sentence into a mathematical sentence and solve, if necessary. Use x as the variable.John weighs at least 56 pounds.
A. x ? 56 B. x > 56 C. x ? 56 D. x < 56
Mathematics