Use your estimation skills to pick the most reasonable answer. Do not solve the problem.748.71 - 0.7
A. 7.4801
B. 748.01
C. 0.74801
Answer: B
Mathematics
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Find the unit tangent vector of the given curve.r(t) = (8 - 2t)i + (2t - 6)j + (8 + t)k
A. T = 
i - 
j - 
k
B. T = - 
i + 
j + 
k
C. T = 
i - 
j - 
k
D. T = - 
i + 
j + 
k
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Use a sum or difference identity to find the exact value.sin 15°
A. 
B. 
C. 
D. 
Mathematics
Solve.-6x2 + 7x - 7 = 0
A. 
B. 
C. 
D. 
Mathematics
Determine whether the equation defines y as a function of x. y = 
A. function B. not a function
Mathematics