Solve the problem.Which of the following vectors is orthogonal to 20i - 8j?
A. w = 4i + 3j
B. w = 15i - 6j
C. w = 20i + 4j
D. w = -10i - 25j
Answer: D
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Perform the division. Write the answer with positive exponents.
A. 6x3 + 28x7 - 28x6 + 35x4 + 4x2
B. 42x8 + 4x2 - 4 + 
+ 
C. 6x2 + 4x - 4 + 
+ 
D. 6x3 + 4x2 - 4
Use the definition to find an expression for the instantaneous velocity of an object moving with rectilinear motion according to the given function relating s (in ft) and t (in s).s = 4t + 3t3
A. 4t + 9t2 B. 4t + 9t3 C. 4 + 9t2 D. 4 + 3t2
Find a formula for the nth partial sum of the series and use it to find the series' sum if the series converges.
+ 
+ 
+ ... + 
+ ...
A. 
; 4
B. 
; 4
C. 
; 4
D. 
; 4
Evaluate the integral by changing the order of integration in an appropriate way.
A. 1 ln 3 (e - 1)
B. 1 ln 2 (e - 1)
C. 
ln 2 (e - 1)
D. 
ln 3 (e - 1)