After working together for t hours on a common task, two workers have done fractional parts of the job equal to 
and 
, respectively. What fractional part of the task has been completed?
?
A. 
B. ?
C. ?
D. ?
E. ?
Answer: E
Mathematics
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Provide an appropriate response.For approximately what values of x can tan-1 x be replaced by 
with an error of magnitude no greater than 
?
A. |x| < 0.11960 B. |x| < 0.08395 C. |x| < 0.11699 D. |x| < 0.08182
Mathematics
Find the exact value of the expression.
A. - 
B. -2
C. - 
D. -
Mathematics
Determine whether the statement is true or false.cos 300° = 1 - sin2150°
A. True B. False
Mathematics
Graph the linear function.f(x) = 4x
A. 
B. 
C. 
D. 
Mathematics