Solve the problem.A plane traveling 390 mph in still air encounters a 45-mph headwind. How long will it take the plane to travel 770 mi into the wind? Round your answer to the nearest tenth of an hour, if necessary.
A. 265,650 hr
B. 2.2 hr
C. 1.8 hr
D. 0.4 hr
Answer: B
Mathematics
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Simplify.
÷ 
A. - 
B. 
C. 
D. - 
Mathematics
Graph the two functions on one coordinate plane.f(x) = 
g(x) = 
+ 1
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.Let f(x) = 
Find all points of discontinuity for this function.
What will be an ideal response?
Mathematics
Solve the problem.Let A = 
and b = 
.Define a transformation T: ?3 -> ?3 by T(x) = Ax. If possible, find a vector x whose image under T is b. Otherwise, state that b is not in the range of the transformation T.
A.
b is not in the range of the transformation T.
B. 
C. 
D. 
Mathematics