Perform the indicated operation and, if possible, simplify.(
+ 5)(
- 5)
A. 2
B. -18
C. 32
D. 7 - 2
Answer: B
Mathematics
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Solve the problem.Two runners run around a circular track. The first runner completes a lap in 7 minutes. The second runner completes a lap in 16 minutes. If they both start at the same place and the same time and go in the same direction, after how many minutes will they meet again at the starting place?
A. 224 B. 112 C. 113 D. 23
Mathematics
Solve the problem.Find the differential of the function y = ln(ln 6x).
A. 
dx
B. 
dx
C. 
dx
D. 
dx
Mathematics
Evaluate the line integral along the curve C.
ds, C is the curve r(t) = (5 - 2t)i + 2tj - 1tk , 0 ? t ? 1
A. 
B. - 
C. 
D. - 
Mathematics
Multiply. Simplify the answer completely.- 
? 
A. - 
B. 
C. - 
D. 
Mathematics