Decide whether the two sequences of operations give the same result.Adding m and n and then multiplying the sum by 7; multiplying m by 7, multiplying n by 7, and then adding the two products
A. No
B. Yes
Answer: B
Mathematics
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Solve.A plane flies 490 miles with the wind and 350 miles against the wind in the same length of time. If the speed of the wind is 27 mph, what is the speed of the plane in still air?
A. 152 mph B. 167 mph C. 162 mph D. 187 mph
Mathematics
Multiply and simplify.
? 108x
A. 
B. 
C. 6,804x
D. 
Mathematics
Find all points where the function has any relative extrema or saddle points and identify the type of relative extremum.f(x,y) = x2 + xy + y2 - 3x + 2
A. Relative minimum at (2, -1) B. Relative maximum at (2, -1) and saddle point at (0, 0) C. Relative maximum at (-2, 1) D. Relative minimum at (2, -1) and saddle point at (0, 0)
Mathematics
Simplify the expression. Assume that all variables are positive when they appear.
A. 
B. 
- 
C. 
D. 
Mathematics