Solve for the indicated letter.Solve S = x2 + y2 - 8x + 10y - 4 for x.
A. x = 4 ± 
B. x = 4 ± 
C. x = 4 ± 
D. x = 4 ± 
Answer: A
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Solve the problem.For the study described below, identify the population parameter.A researcher is interested in the level of stress among emergency-room nurses in the U.S. 275 emergency-room nurses were interviewed to determine their level of stress. Each nurse was assigned a stress rating based on his or her answers to a number of questions. The average stress rating for the 275 nurses was determined.
A. The average stress rating for all emergency-room nurses in the world B. All emergency-room nurses in the U.S. C. The average stress rating for all emergency-room nurses in the U.S. D. The average stress rating for the 275 emergency-room nurses interviewed
Solve. Where appropriate, include approximations to the nearest thousandth. If no solution exists, state this.log (x + 3) + log x = 1
A. -2, 5 B. -2 C. -5, 2 D. 2
Solve the problem.A lens can be used to create an image of an object on the opposite side of the lens, such as the image created on a movie screen. Every lens has a measurement called its focal length, f. The distance s1 of the object to the lens is related to the distance s2 of the lens to the image by the function s1 = 
.For a lens with f = 0.3 m, what are the asymptotes of this function?
What will be an ideal response?
Provide an appropriate response.Identify three common factors of 5x2 + 10x.
A. 5, 10, x B. 5, 5x, 10x C. 5, x, x2 D. 5, x, 5x