Provide an appropriate response.If x represents a positive integer, how would you express its negative?
Fill in the blank(s) with the appropriate word(s).
-x
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Set up the percent proportion for the application problem. Do not try to solve for any unknowns.Sales tax of $21 is charged on an item that costs $2600. What percent sales tax is charged?
A. 
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B. 
= 
C. 
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D. 
= 
Identify the conic section represented by the equation.15y2 = 9x - x2
A. parabola B. ellipse C. hyperbola D. circle
Use Bayes' rule to find the indicated probability.The incidence of a certain disease on the island of Tukow is 4%. A new test has been developed to diagnose the disease. Using this test, 91% of those who have the disease test positive while 4% of those who do not have the disease test positive (false positive). If a person tests positive, what is the probability that he or she actually has the disease?
A. 0.438 B. 0.487 C. 0.91 D. 0.856
Use a graphing calculator to solve the system of equations. Round your solution to one decimal place.1.1x + 15.5y - 4.3z = 4.24.2x - 7.0y - 1.2z = -5.02.4x + 7.1y + 3.4z = 10.1
A. (0.1, 0.3, 0.6) B. (0.3, 0.6, 1.4) C. (0.1, 0.1, 0.3) D. (0.6, 1.4, 3.1)