The vector x is in a subspace H with a basis ? = {b1, b2}. Find the ?-coordinate vector of x.b1 = 
, b2 = 
, x = 
A. 
B. 
C. 
D. 
Answer: C
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Solve.Dave can hike on level ground 3 miles an hour faster than he can on uphill terrain. Yesterday, he hiked 37 miles, spending 2 hours on level ground and 5 hours on uphill terrain. Find his average speed on level ground.
A. 5
mph
B. 4
mph
C. 7
mph
D. 7
mph
Use a proportion to solve the problem.It is recommended that there be at least 7 square feet of work space for every person in a conference room. A certain conference room is 19' by 10'. Find the maximum number of people the room can accommodate.
A. 28 people B. 47 people C. 37 people D. 27 people
-36 ÷ 0
A. -36 B. 0 C. 36 D. undefined
Factor out the greatest common factor.6m(9 - m) + 5n(9 - m)
A. m(6 + 5n)(9 - 1) B. No common factor (except 1) C. (6m - 5n)(9 - m) D. (6m + 5n)(9 - m)