Use the Pythagorean Theorem to find the length of the missing side.Then find the indicated trigonometric function of the given angle. Give an exact answer with a rational denominator.Find sin ?.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Solve the differential equation.
- 
= ( ln x)2
A. y = x (ln x) 3 + Cx
B. y = 
x3 + Cx
C. y = 
(ln x) 3 + Cx
D. y = 
x (ln x) 3 + Cx
Mathematics
Find sum of the pair of complex numbers.7 - 8i, 4i
A. 11 - 8i B. 3i C. 7 - 12i D. 7 - 4i
Mathematics
Subtract and simplify.
A. 17
B. 19
C. 18
D. 18
Mathematics
Solve the problem.Suppose 
is a mathematical model for actual time as a function of estimated time, where f(x) represents actual time (in minutes), x represents estimated time (in minutes), and m and b are constants. If 
and b = -3, find f(x) when x is 60 minutes.
A. 67.8 min B. 153 min C. 159 min D. 52.2 min
Mathematics