Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.tan ? = 
, ? < ? < 
Find cos(2?).
A. 
B. - 
C. 
D. - 
Answer: C
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Provide an appropriate response.The following table has the inputs, x, and the outputs for three functions, f, g, and h. Use second differences to determine which function is exactly quadratic, which is approximately quadratic, and which is not quadratic.
What will be an ideal response?
Insert either < or > in the area between the pair of numbers to make a true statement.- 
- 
A. < B. >
Write the polynomial in standard form. Then find its degree and leading coefficient.6 + 2x4 - 6x5
A. 6 + 2x4 - 6x5 , degree: 5, leading coefficient: 6 B. -6x5 + 2x4 + 6, degree: 5, leading coefficient: -6 C. -6x5 + 2x4 + 6, degree: 9, leading coefficient: -6 D. 6 + 2x4 - 6x5 , degree: 10, leading coefficient: 6
Round the whole number to the given place.398,649 to the nearest ten thousand
A. 390,000 B. 398,000 C. 400,000 D. 500,000