A television camera at ground level is filming the lift-off of a space shuttle at a point 
meters from the launch pad (see figure). Let ? be the angle of elevation to the shuttle and let s be the height of the shuttle. Write ? as a function of s.
?
?
A. 
B. 
C. 
D. 
E. 
Answer: A
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Use the given transformation to evaluate the integral. src="https://sciemce.com/media/4/ppg__ghvb0609192137__f1q25g7.jpg" alt="" style="vertical-align: -4.0px;" />
Rwhere R is the parallelogram bounded by the lines 
A. 
B. 
C. 
D. 
Perform the indicated operations. Leave the result in polar form.
A. 
B. 
C. 
D. 
Use the properties of logarithms to evaluate the expression.10log t
A. 10t B. t C. 10t D. 1
Solve.The amount of time it takes a swimmer to swim a race is inversely proportional to the average speed of the swimmer. A swimmer finishes a race in 50 seconds with an average speed of 3 feet per second. Find the average speed of the swimmer if it takes 25 seconds to finish the race.
A. 8 feet per second B. 5 feet per second C. 7 feet per second D. 6 feet per second