Use multiplication to check the answer. If an answer is incorrect, find the correct answer.
A. Incorrect; should be 343 R4
B. Incorrect; should be 344 R5
C. Incorrect; should be 345 R7
D. Correct
Answer: B
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Assuming that the equations define x and y implicitly as differentiable functions 
find the slope of the curve 
at the given value of t.x = t sin t + t, y cos t + y = 2t, t = 
A. 
B. 
C. 2 + ?
D. - 
Write the function in the form y = f(u) and u = g(x). Then find dy/dx as a function of x.y = cos3 x
A. y = cos u; u = x3; 
= - 3x2 sin(x3)
B. y = u3; u = cos x; 
= 3 cos2 x sin x
C. y = u3; u = cos x; 
= - 3 cos2 x sin x
D. y = cos u; u = x3; 
= - sin(x3)
Solve.5x + 6 = 41
A. 2 B. 7 C. 34 D. 30
Add like terms, if possible, and write the result in descending powers of the variable.3m6 - 3m6 + 3m6 - 7m6
A. -4m24 B. -4m6 C. -24m D. Cannot be simplified