Use a combination of rules for exponents to simplify. Write answers with only positive exponents. Assume that all variables represent nonzero real numbers.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Evaluate the line integral along the curve C.
ds, C is the curve r(t) = (-4 - t)i + 2tj - 2tk , 0 ? t ? 1
A. 18 B. - 6 C. - 2 D. 6
Mathematics
Find an equation of the line that passes through the points (1, 3) and (3, 13). ?
A. 
B. 
C. ?
D. ?
E. ?
Mathematics
Solve the problem.A paperweight is in the shape of a square-based pyramid 14 centimeters tall. If an edge of the base is 13
centimeters, find the volume of the pyramid.
A. 850
? cu. cm
B. 850
cu. cm
C. 10,206 cu. cm
D. 2551
cu. cm
Mathematics
Use the unit circle to determine the value of the given expression or state that it is undefined.sin 
A. 
B. -1
C. - 
D. - 
Mathematics