Find the vertex.f(x) = -4x2 + 8x - 10
A. (1, -6)
B. (-6, 1)
C. (6, -1)
D. (-1, 6)
Answer: A
Mathematics
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Write as a proportion.If 5.7 pounds of shrimp costs $38.76, then 7.9 pounds should cost $53.72.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics
Solve for the missing values. Round money to the nearest cent, rate to the nearest tenth of a percent, and time to the nearest day.Principal: 
Interest: $805Rate: 
Time: 317 daysMaturity value: $11,054
A. $10,249; 8.9% B. $10,249; 9.3% C. $10,249; 8.8% D. $10,449; 9.1%
Mathematics
Provide an appropriate response.An x-value of a solution of the system 
is
A. 4. B. -1. C. 1. D. -4. E. 11.
Mathematics
Rationalize the denominator.
A. 
B. 
C. 
D. 
Mathematics