Solve the problem.The length of a British nautical mile varies with latitude, according to the formula 
where ? is the latitude in radians and l is in feet. Find the average length of a nautical mile for latitudes between ?/4 radians and ?/2 radians.
A. 18,265 ft
B. 9534 ft
C. 6065 ft
D. 4767 ft
Answer: C
Mathematics
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Solve the problem.A sequence is defined by f(n) = floor(
)?ceiling(
). By looking at several examples on your calculator determine 
A. n2 + n B. (n - 1)2 C. (n + 1)2 D. n2 - n
Mathematics
Simplify. Do not use negative exponents in your answer.y-7? y-2
A. 
B. y9
C. 
D. 
Mathematics
Insert <, >, or = between the pair of numbers to form a true statement.0.165 _____ 0.166
A. > B. < C. =
Mathematics
Express the quantity as a signed number.378 feet below sea level
A. -378 feet B. 378 feet
Mathematics