Find the derivative of y with respect to x, t, or ?, as appropriate.y = (x2 - 2x + 8) ex
A. (x2 + 4x + 6) ex
B. 
ex
C. (2x - 2) ex
D. (x2 + 6) ex
Answer: D
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The (r + 1)st term of the expression (a + b)n, 0 ? r ? n, is given by 
an - rbr. Find the specified term.The 5th term of (2x + 3y)10.
A. 362,880x4y6 B. 544,320x4y6 C. 1,088,640x6y4 D. 362,880x6y5
Place the correct symbol, < or >, in the blank between the whole numbers.560 
592
A. < B. >
Provide an appropriate response.If 60% of the 450 students at Central 9th Grade Center purchased spring photographs, how many students did not purchase the photographs? The percentage is the unknown value.
A. True B. False
Solve the problem.A painter needs to cover a triangular region with sides of 64 meters, 69 meters, and 70 meters. If each can of paint covers 70 square meters, how many cans will be needed?
A. 321 cans B. 15 cans C. 3 cans D. 29 cans