Find the exact value. Do not use a calculator.sec 
A. - 
B. 
C. - 
D. -2
Answer: C
Mathematics
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Do not use a calculator. Find an exact value of s in the specified interval with the given circular function value.cos s = - 
, 
A. 
B. 
C. 
D. 
Mathematics
Prove the identity.cos 
= -sin x
What will be an ideal response?
Mathematics
Find the average of the list of numbers.214, 173, 195, 202, 211
A. 198 B. 199 C. 209 D. 202
Mathematics
The wages of employees of a small accounting firm are as follows. Draw a stem-and-leaf plot. $14,000, $16,000, $25,000, $25,000, $18,000, $30,000,$20,000, $25,000, $30,000, $35,000, $18,000, $50,000,$60,000?
A. 
B. 
C. 
D. 
E. 
Mathematics