Add or subtract. Assume all variables represent positive real numbers.17
- 5
A. 8
B. -8
C. 17
- 5
D. 12
Answer: B
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Determine the number of solutions of the system. State whether the system is consistent or inconsistent. For a system that is consistent, state whether the equations are dependent or independent. State the solution of the system.
A. one solution; consistent; independent; (0, 2)
B. one solution; consistent; independent; 
C. infinitely many solutions; consistent; dependent
D. no solution; inconsistent
Write as a decimal.990%
A. 9.91 B. 99 C. 9.9 D. 0.99
Perform the indicated operation.Subtract (28x + 11) from (-8x2 - 14x + 11).
A. -8x2 - 42x - 22 B. 8x2 + 42x C. -8x2 + 14x + 22 D. -8x2 - 42x
The number of people who donated to a certain organization between 1975 and 1992 can be modeled by the equation 
donors, where t is the number of years after 1975. Find the inflection point(s) from 
through
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?
A. There are no inflection points from 
.
B. There is one inflection point at 
.
C. There are inflection points at 
.
D. There is one inflection point at 
.
E. There are inflection points at 
, 
, 
.