Verify the identity.
= cot 
What will be an ideal response?
= 
= 
= cot 
Mathematics
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Mentally estimate the number that should go in the blank to make the statement true.6 is 
% of 23.5.
A. About 10 B. About 50 C. About 25 D. About 75
Mathematics
Find the value of the constant k so that the function is a probability density function in the indicated interval.
?
What will be an ideal response?
Mathematics
Find the value of the expression.log31
A. 10 B. 3 C. 0 D. 1
Mathematics
Use the graph to solve the problem.In one city, the temperature in Fahrenheit on a typical summer day can be approximated by the following function:
Here, t represents the number of hours since 
The graph of this function is shown below. At what time does it start to get cooler?
A. At 3 p.m. B. At 1 p.m. C. At 10 a.m. D. At 4 p.m.
Mathematics