Find ( f ? g )(x) and (g ? f )(x) , given that 
What will be an ideal response?
Mathematics
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Calculate the Riemann sum 
?xi for the given data.f(x) = x + 4; P: 2 < 2.75 < 3.25 < 4.5 < 5.5; 
= 2, 
= 3, 
= 4.25, 
= 5
A. 28 B. 27.7216 C. 27.3125 D. 26.0125
Mathematics
Write the expression in terms of sines and/or cosines, and then simplify.(1 - csc ?)( 1 + csc ?)
A. tan2 ? B. cos2 ? C. -csc2 ? D. -cot2 ?
Mathematics
Find the area. Use 3.14 for ? as necessary.
A. 109.9 cm2 B. 961.625 cm2 C. 3846.5 cm2 D. 219.8 cm2
Mathematics
Factor the four-term polynomial by grouping.2xy - 6x + 7y - 21
A. (2x + y)(7y - 3) B. (2x + 7y)(y - 3) C. (2x - 3)(y + 7) D. (2x + 7)(y - 3)
Mathematics