Find the quantity if v = 5i - 7j and w = 3i + 2j.
A. 2
- 
B. 
C. 
- 
D. 
Answer: D
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Provide an appropriate response.For approximately what values of x can tan-1 x be replaced by 
with an error of magnitude no greater than 
?
A. |x| < 0.43610 B. |x| < 0.37977 C. |x| < 0.44581 D. |x| < 0.38965
Use the even-odd identities to find the exact value of the expression. csc (-30°)
A. 2
B. 
C. -2
D. - 
Solve using Cramer's rule.-5x - 8z = -109 8x + 8y + 4z = 112-9x - 4y = -85
A. (9, -1, -8) B. (1, 8, 1) C. (10, -1, 8) D. (9, 1, 8)
?Production. Suppose that the total number of units produced by a worker in t hours of an 8-hour shift can be modeled by the production function 
. Find the number of hours before the rate of production is maximized. That is, find the point of diminishing returns.
?
A. ?
B. ?
C. ?
D. ?
E. ?