Find the region that contains ordered pairs that are solutions to both inequalities.x + 2y ? 2 and x - y ? 0
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find the vector projv u.v = 7i - 3j + k, u = -4j + 3k
A. - 
j + 
k
B. 
i - 
j + 
k
C. - 
j + 
k
D. 
i - 
j + 
k
Mathematics
Evaluate the integral by making a substitution and then using a table of integrals.
A. 
tan-1 
+ C
B. 
tan-1 
+ C
C. 
sin-1 
+ C
D. 
sin-1 
+ C
Mathematics
Ten people are meeting at a conference. Each person is instructed to introduce herself or himself to each of the other participants at the conference. If it is estimated that each introduction should take 1.5 minutes, how much time should be allowed in the schedule for this activity?
What will be an ideal response?
Mathematics
Solve by the quadratic formula. If there are no real roots, say so.x2 = 9 - 4x
A. -1 ± 
B. 2 + 
C. -2 ± 2
D. -2 ± 
Mathematics