Find the exact value of the expression.cot 
A. 
B. 
- 1
C. 2 + 
D. 2 - 
Answer: C
Mathematics
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Solve the polynomial inequality. Express the solution in interval notation.2x2 - 3x ? 5
A. (-?, -1) ? 
B. 
C. (-?, -1] ?
D. 
Mathematics
Add the polynomials. Express your answer in standard form.(7x2 - 8x - 4) + (6x2 - 8x + 7)
A. 42x2 - 8x + 3 B. 13x4 - 16x2 + 3 C. 13x2 - 16x + 3 D. 13x2 - 8x + 3
Mathematics
Use a formula to solve the problem.Find the area of a triangle with height 6 m and base 14 m.
A. 42 m2 B. 168 m2 C. 10 m2 D. 84 m2
Mathematics
Solve the problem.Brandon can paint a fence in 12 hours and Elaine can paint the same fence in 11 hours. How long will they take to paint the fence if they work together? Give your answer rounded to one decimal place, if necessary.
A. 5.8 hr B. 5.5 hr C. 5.7 hr D. 11.5 hr
Mathematics