Determine the intervals on which the following polynomial is entirely negative and those on which it is entirely positive. -x2 - 6x + 7
a. entirely negative:
entirely positive: 
b.entirely negative: 
entirely positive: 
c. entirely negative: 
entirely positive: 
d. entirely negative: 
entirely positive:
e. entirely negative: 
entirely positive: 
c. entirely negative: entirely positive:
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Determine whether the system of equations is consistent with independent equations, consistent with dependent equations, or inconsistent. How many solutions does the system have?
A. Consistent with dependent equations; infinite number of solutions B. Inconsistent; no solution C. Consistent with independent equations; one solution
Rationalize the denominator. Assume that all variables represent positive real numbers and that the denominator is not zero.
A. 
B. 
C. 
D. 
Simplify.(-4)3
A. 64 B. -64 C. -12 D. 12
Find the integral.
A. 
ln 
- 9x-1/2 + C
B. 
ln 
- 9x-1/2 + C
C. 
ln 
+ 9x-1/2 + C
D. 
ln 
+ 9x-1/2 + C