Find the difference.- 481 - (-955)
A. -474
B. -374
C. -1436
D. 474
Answer: D
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Find the vector projv u.v = 3i - j + 3k, u = 2i + 10j + 11k
A. 
i - 
j + 
k
B. 
i + 
j + 
k
C. 
i - 
j + 
k
D. 
i + 
j + 
k
Solve the problem.A child on a swing sweeps out a distance of 20 ft on the first pass. If she is allowed to continue swinging until she stops, and if on each pass she sweeps out a distance 
of the previous pass, how far does the child travel?
A. 100 ft B. 80 ft C. 60 ft D. 40 ft
Show that the function 
is concave upward wherever it is defined.
?
A. The function 
is defined for any value of x and 
hence the function is concave upward for any x.
B. The second derivative of 
is 
. It is positive for any value of x, hence the function is concave upward for any x.
C. The first derivative of 
is 
. It is positive for any value of x, hence the function is concave upward for any x.
Solve the equation.43x - 1 = 16
A. {1} B. {0} C. {3} D. {2}