Find the exact value of the expression using the provided information.Find cos(s - t) given that cos s = 
, with s in quadrant I, and 
with t in 
A. 
B. 
C. 
D. - 
Answer: B
Mathematics
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Evaluate the requested trigonometric function using the information given. cos ? = 
; 0 < ? < ?/2Find sec ?.
A. 
B. 6
C. -6
D. 
Mathematics
Which document was written primarily in order to help emphasize the roles of reasoning and sense-making in the curriculum?
a. Focus in High School Mathematics b. Curriculum Focal Points c. Assessment Standards for School Mathematics d. Saxon Mathematics
Mathematics
Show the solution set of each inequality on a number line.-2 < x < 2
A. 
B. 
C. 
D. 
Mathematics
Evaluate the expression using the given values.
; x = 5, y = 7
A. 26 B. 10 C. 31 D. 13
Mathematics