Solve the problem.A surveyor is measuring the distance across a small lake. He has set up his transit on one side of the lake 130 feet from a piling that is directly across from a pier on the other side of the lake. From his transit, the angle between the piling and the pier is 50°. What is the distance between the piling and the pier to the nearest foot?
A. 84 feet
B. 155 feet
C. 109 feet
D. 100 feet
Answer: B
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Express the integrand as a sum of partial fractions and evaluate the integral.
dx
A. - 
tan-1 
- 
+ C
B. ln 
- 
tan-1 
+ C
C. ln 
- 
tan-1 
- 
+ C
D. ln 
- 
+ C
Use the rules of exponents to simplify the expression. Write the answer with positive exponents. Assume that all variables represent positive real numbers.(
)2(m-1/8b1/6)-2
A. 
B. 
C. 
D. 
Find the LCM of the set of numbers.50, 80
A. 400 B. 4,000 C. 130 D. 80
Find the area of the trapezoid where a and b are the lengths of the bases and h is the perpendicular distance between the bases.Let a = 
inches, b = 
inches, and h = 
style="vertical-align:-1px;" varid="variable_id_field" variablename="impvar_1fd9c3e1c7f44717aa7f190b9" class="wirisformula" /> inches.Area = __________ in 2 Fill in the blank(s) with the appropriate word(s).