Solve the variation problem.The intensity of a radio signal from a radio station varies inversely as the square of the distance from the station. If the intensity is 8000 units at a distance of 2 miles, what will it be at a distance of 14 miles? Round to the nearest unit.
A. 127 units
B. 163 units
C. 189 units
D. 146 units
Answer: B
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Solve the problem.
Eric Yang earns $603.16 weekly, is married, and claims 2 withholding allowances. Find his net earnings for this pay period. Social security tax is 6.2% and Medicare tax is 1.45%.
A. $557.01 B. $574.82 C. $585.35 D. $528.67
Perform the indicated operation.17 tons 500 lb ÷ 5
A. 3 tons 100 lb B. 3 tons 101 lb C. 4 tons 100 lb D. 3 tons 900 lb
Solve the problem. Write ratios in lowest terms.A certain lake is 1100 feet deep. A nearby lake is 800 feet deep. Write the ratio of the first lake's depth to the second lake's depth.
A. 
B. 
C. 
D. 
Find the exact value of the expression using the provided information.Find tan(A - B) given that sin A = - 
, with A in quadrant IV, and 
with B in 
A. - 
B. - 
C. 
D. - 