Use an identity to find the value of the expression. Do not use a calculator.tan 20° - 
A. 1
B. 20
C. 0
D. Undefined
Answer: C
Mathematics
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Find the zeros of the function. Give exact answers.f(x) = x2 - 3x - 8
A. 
B. 
C. 
D. 
Mathematics
Solve the problem. Simplify the fraction, if possible.In a math class containing 77 students, there are 11 freshman, 22 sophomores, 
and 
What fraction of the class is NOT juniors?
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.2 + log3(2x + 5) - log3 x = 4
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A plane is heading due south with an airspeed of 282 mph. A wind from a direction of 50° is blowing at 16 mph. Find the bearing of the plane.
A. 88° B. 177° C. 93° D. 182°
Mathematics