Solve the problem.An airplane flying faster than the speed of sound creates sound waves that form a cone. If ? is the vertex angle of the cone and m is the Mach number for the speed of the plane, then 
Find ? to the nearest degree if 
A. 43°
B. 45°
C. 40°
D. 38°
Answer: C
Mathematics
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Solve.Toni needs to cut a 3
- foot board into 6 equal pieces. How long should each piece be?
A. 1
ft
B. 22
ft
C. 
ft
D. 3 
ft
Mathematics
Write the form of the partial fraction decomposition of the rational expression. Do not solve for the constants.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Solve the equation.
x + 
= 
x
A. 10 B. 26 C. -10 D. -26
Mathematics
Simplify.
A. 3
B. 
C. 
D. 3 - x2
Mathematics