Solve the problem.A one-way street passes under an overpass, which is in the form of the top half of an ellipse, as shown in the figure. Suppose that a truck 10 feet wide passes directly under the overpass. What is the maximum possible height of this truck to the nearest tenth of a foot? 
A. 9.6 ft
B. 14.7 ft
C. 7.4 ft
D. 8.5 ft
Answer: B
Mathematics
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Evaluate the integral by making a substitution and then using a table of integrals.
A. 2 sin-1 
+ C
B. 
+ 2 ln 
+ C
C. 
+ 2 ln 
+ C
D. 
+ 2 sin-1 
+ C
Mathematics
Solve.The price of a jacket was reduced from $168 to $117.60. What was the percent of decrease in the price?
A. 31% B. 32% C. 3% D. 30%
Mathematics
Let x = 2 tan ?, 0 ? ? < ? / 2. Simplify the expression.  figure 1.png)
 figure 2.png)
Mathematics
Find the domain of f(x).f(x) = 
A. 
B. 
C. 
D. 
Mathematics