Use a graphing calculator to estimate the solution set of the equation. Round to the nearest hundredth.9e2.1x = 43
A. {4.69}
B. {1.56}
C. {0.74}
D. {3.28}
Answer: C
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Solve the problem.In the weighted voting system 
, the total number of possible sequential coalitions involving all five players is
A. 120. B. 24. C. 16. D. 720. E. none of these
Simplify the algebraic expression.9x + 2x
A. 11x B. 11 + x C. 7x D. -7x
Solve the problem.A doctor has told a patient to take vitamin pills. The patient needs at least 36 units of vitamin A, at least 9 units of vitamin C, and at least 91 units of vitamin D. The red vitamin pills cost 
each and contain 6 units of A, 1 unit of C, and 7 units of D. The blue vitamin pills cost 
each and contain 4 units of A, 1 unit of C, and 14 units of D. How many pills should the patient take each day to minimize costs?
A. 6 red and 3 blue B. 5 red and 4 blue C. 4 red and 5 blue D. 9 red and 0 blue
Find the length of the third side of the right triangle. Assume that c represents the length of the hypotenuse. Give an exact answer and, if appropriate, an approximation to three decimal places.a = 30, c = 50
A. b = 80 B. b = 20 C. b = 10 D. b = 40