Solve.(7x - 5)(7x - 3) = 0
A. 
, 
B. 
, 
C. - 
, - 
D. 
, 
Answer: B
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Tell whether or not the rational expressions are equivalent.
, 
A. No B. Yes
Solve the equation by first multiplying both sides through by an appropriate power of 10 so that the equation contains integers only.0.7x + 0.3 = -0.4
A. -1 B. 0.143 C. -0.1 D. -0.143
Find the equation of the least squares line.Two different tests are designed to measure employee productivity and dexterity. Several employees of a company are randomly selected and asked to complete the tests. The results are below. 
A. y = 75.3 - 0.329x B. y = 10.7 + 1.53x C. y = 2.36 + 2.03x D. y = 5.05 + 1.91x
Solve the problem.The concentration of a certain drug in the bloodstream x hours after being administered is approximately 
Use the differential to approximate the change in concentration as x changes from 1 to 1.45.
A. 0.43 B. 0.38 C. 0.25 D. 0.84