Use back-substitution to solve the system of linear equations.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: B
Mathematics
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Evaluate the integral.
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.A company advertises an average of 42,000 miles for one of its new tires. In the manufacturing process there is some variation around that average. Would the company want a process that provides a large or a small standard deviation? Justify your answer.
What will be an ideal response?
Mathematics
Complete the equation so the result is an identity. 1 - 
= sin2x
A. cos2x B. cot2x C. sec2x D. tan2x
Mathematics
Find the derivative.s = t3 tan t - 
A. 
= - t3 sec2 t + 3t2 tan t + 
B. 
= t3 sec t tan t + 3t2 tan t - 
C. 
= t3 sec2 t + 3t2 tan t - 
D. 
= 3t2 sec2 t - 
Mathematics