Add or subtract. Express the answer as a mixed number.5
+ 5
A. 11
B. 11
C. 5
D. 10
Answer: B
Mathematics
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Provide an appropriate response.Derive the identity sec-1(-x) = ? - sec-1 x by combining the following two equations:cos-1(-x) = ? - cos-1 xsec-1 x = cos-1(1/x)
What will be an ideal response?
Mathematics
Solve the problem.To find the distance AB across a river, a distance BC = 1,101 m is laid off on one side of the river. It is found that B = 112.8° and C = 12.0°. Find AB rounded to the nearest meter.
A. 279 m B. 230 m C. 233 m D. 282 m
Mathematics
Solve the rational inequality. Write the solution in interval notation.
< 4
A. 
B. (-5, 4)
C. (-?, 4) ? 
D. ?
Mathematics
Perform the indicated operation and write the answer in lowest terms.
+ 
A. 3
B. 
C. 0
D. 
Mathematics