Evaluate the polynomial. x2 - 4y2 - xy for x = 2 and y = -2
A. 16
B. -8
C. -16
D. 24
Answer: B
Mathematics
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Convert the weight as indicated.3.78 tons to pounds
A. 0.00189 lb B. 0.0189 lb C. 7560 lb D. 756 lb
Mathematics
Provide an appropriate response.Find the indicated sum: 
.
A. 20 B. 5 C. -18 D. -6
Mathematics
Solve the problem.A certain noise measures 
If the intensity is multiplied by 100, how many decibels will the new noise measure? Use the formula 
with 
A. 53 decibels B. 5100 decibels C. 71 decibels D. 102 decibels
Mathematics
Simplify the radical expression. Assume that all variables represent nonnegative real numbers.(
- 
)2
A. x2 - 2
+ y2
B. x - 
+ y
C. x - 2
+ 9y
D. x2 - 
+ y2
Mathematics