Four tires can be replaced on a car in 
of an hour. If 
cars needed their tires changed, how long would it take?
A. 
hours
B. 
hours
C. 
hours
D. 
hours
E. 
hours
Answer: C
Mathematics
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Determine the indefinite integral. Check your work by differentiation.
dx
A. 18x2 - 3 + C
B. 18x4 - 6x2 + 3x + C
C. 
x4 - 
x2 + 3x + C
D. 6x4 - 3x2 + 3x + C
Mathematics
Provide an appropriate response.Obtain the first nonzero term of the Maclaurin series for sin-1 x - tan-1 x.
A. 
B. 
C. - 
D. 
Mathematics
Multiply in the indicated base. 2357 × 67
A. 22127 B. 21127 C. 20127 D. 21337
Mathematics
Evaluate or simplify the given expression.cos (cot-1 x)
A. 
B. 
C. 
D. 
Mathematics