Solve the problem.The mean air temperature T, in F°, at Fairbanks, Alaska, on the nth day of the year, 
is approximated by: 
Find the temperature at Fairbanks on day 100, to the nearest tenth.
A. 19.9° F
B. 36.6° F
C. 24.4° F
D. 21.4° F
Answer: C
Mathematics
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Find the length of the curve.The curve r = 3
, 0 ? ? ? 
A. 
(? + 2)
B. 3(? + ln(? + 
))
C. 
?
D. 2?
Mathematics
Determine whether Rolle's Theorem applies to the following functions on the given interval. If so, find the point(s) that are guaranteed to exist by Rolle's Theorem.f(x) = cos 6x; 
A. x = 1
B. x = -1
C. x = 0
D. x = 
Mathematics
Determine if the equation is an identity.cos(x - y) cos y - sin(x - y) sin y = cos y
A. Not an identity B. Identity
Mathematics
Solve.
= 
A. No solution
B. - 
C. 
D. 
Mathematics