Name the quadrant in which the angle ? lies.sin ? > 0, cos ? > 0
A. I
B. II
C. III
D. IV
Answer: A
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Determine whether the following is always true or not always true. Given reasons for your answers.u × 0 = 0
What will be an ideal response?
Solve the problem.The number of mobile phones sold in a given year is approximated by 
where x represents the number of years since mobile phones became readily available. The corresponding polynomial for phones is 
Find the polynomial that represents how many more mobile phones than phones were sold in a given year.
A. -4x4 + x3 + 5x2 - 9x + 11 B. 4x4 - x3 + 13x2 - 3x + 9 C. -4x4 - x3 - 2x + 10 D. -4x4 + x3 + 12x2 + 3x - 9
Use the distributive property to calculate the value mentally.61 ? 
- 11 ? 
A. 252 B. 87.5 C. 175 D. 339.5
Solve the problem.Find (fg)(4) when f(x) = x + 1 and g(x) = -5x2 + 20x - 3.
A. 465 B. -9 C. -15 D. -249