Solve the quadratic inequality. Write your answer in interval notation.5x2 + 2x + 3 ? 0
A. 
B. 
C. All real numbers
D. No real solutions
Answer: C
Mathematics
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Use logarithmic differentiation to find the derivative of y.y = 
A. 
B. 
C. 
+ 
- 
D. ln x + 
ln(x5 + 1) - 
ln(x + 1)
Mathematics
Solve the problem.Total profit is defined as total revenue minus total cost. R(x) and C(x) are the revenue and cost from the sale of x televisions. If 
and 
find the profit from the sale of 80 televisions.
A. $25,520 B. $7120 C. $19,120 D. $13,520
Mathematics
Multiply the polynomials.(6x + 7)(-4x2 + x - 5)
A. -24x3 - 34x2 - 23x - 35 B. 2x2 - 23x - 35 C. -24x3 - 23x - 35 D. -24x3 - 22x2 - 23x - 35
Mathematics
Round to the nearest thousandth.6.49999
A. 6.500 B. 7.000 C. 6.490 D. 6.590
Mathematics