When a Petroland oil well was first brought on line, it produced 1,900 barrels of crude oil per day. In each later year, owners expect its daily production to drop by 70 barrels. Find the daily production after 2.5 years.
?
A. 1,725 barrels
B. 1,690 barrels
C. 863 barrels
D. 1,760 barrels
E. 1,900 barrels
Answer: A
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Provide an appropriate response.For the function y = cot (5x + ?), determine the interval of the principal cycle and the equations of the vertical asymptotes of the principal cycle.
A. 0 < x < 
; x = 
B. 0 < x < 
; x = 0, x = 
C. - 
< x < 0; x = - 
D. - 
< x < 0; x = - 
, x = 0
Solve the double inequality.-38 ? -5z + 2 or -5z + 2 ? -8
A. 2 ? z or z ? 8 B. -8 ? z or z ? -2 C. -8 < z or z < -2 D. 2 < z or z < 8
Solve the inequality. Write the solution set in interval notation and graph it.
(6x + 1) - 
(3x + 1) ? 
A. 
B. 
C. 
D. 
Solve the problem.The intensity I of light varies inversely with the square of the distance D from the source. If the intensity of illumination on a screen 5 ft from a light is 2 foot-candles, find the intensity on a screen 15 ft from the light.
A. 
foot-candle
B. 
foot-candle
C. 1
foot-candles
D. 2 foot-candles