Solve the problem.Data representing the price and quantity demanded for hand-held electronic organizers were analyzed every day for 15 days. The logarithmic function of best fit to the data was found to be 
Use this to predict the number of hand-held electronic organizers that would be demanded if the price were $275.
What will be an ideal response?
5 electronic organizers
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Find the length and direction (when defined) of u × v.u = 2i + 2j - k, v = -i + k
A. 3; 
i - 
j + 
k
B. 3; 
i + 
j - 
k
C. 9; 
i + 
j - 
k
D. 9; 
i - 
j + 
k
Solve the problem.Find the length of the curve y = ln(sin x), ?/3 ? x ? ?/2
A. 1 - ln(
)
B. ln(
)
C. ln(2
)
D. ln(
+ 1)
Solve the problem.In a triangle, the measure of the first angle is four times the measure of the second angle. The measure of the third angle is 114° more than the second angle. What is the measure of the first angle?
A. 125° B. 49° C. 11° D. 44°
Provide an appropriate response.For approximately what values of x can sin x be replaced by 
with an error of magnitude no greater than 
?
A. |x| < 0.42537 B. |x| < 0.33064 C. |x| < 0.36889 D. |x| < 0.27495